21917040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:159

約数の個数: 160

約数和(自身を含む): 72852480

約数和(自身を除く): 50935440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 47, 48, 58, 60, 67, 80, 87, 94, 116, 120, 134, 141, 145, 174, 188, 201, 232, 235, 240, 268, 282, 290, 335, 348, 376, 402, 435, 464, 470, 536, 564, 580, 670, 696, 705, 752, 804, 870, 940, 1005, 1072, 1128, 1160, 1340, 1363, 1392, 1410, 1608, 1740, 1880, 1943, 2010, 2256, 2320, 2680, 2726, 2820, 3149, 3216, 3480, 3760, 3886, 4020, 4089, 5360, 5452, 5640, 5829, 6298, 6815, 6960, 7772, 8040, 8178, 9447, 9715, 10904, 11280, 11658, 12596, 13630, 15544, 15745, 16080, 16356, 18894, 19430, 20445, 21808, 23316, 25192, 27260, 29145, 31088, 31490, 32712, 37788, 38860, 40890, 46632, 47235, 50384, 54520, 58290, 62980, 65424, 75576, 77720, 81780, 91321, 93264, 94470, 109040, 116580, 125960, 151152, 155440, 163560, 182642, 188940, 233160, 251920, 273963, 327120, 365284, 377880, 456605, 466320, 547926, 730568, 755760, 913210, 1095852, 1369815, 1461136, 1826420, 2191704, 2739630, 3652840, 4383408, 5479260, 7305680, 10958520, 21917040]

約数ペア:

[(1, 21917040), (2, 10958520), (3, 7305680), (4, 5479260), (5, 4383408), (6, 3652840), (8, 2739630), (10, 2191704), (12, 1826420), (15, 1461136), (16, 1369815), (20, 1095852), (24, 913210), (29, 755760), (30, 730568), (40, 547926), (47, 466320), (48, 456605), (58, 377880), (60, 365284), (67, 327120), (80, 273963), (87, 251920), (94, 233160), (116, 188940), (120, 182642), (134, 163560), (141, 155440), (145, 151152), (174, 125960), (188, 116580), (201, 109040), (232, 94470), (235, 93264), (240, 91321), (268, 81780), (282, 77720), (290, 75576), (335, 65424), (348, 62980), (376, 58290), (402, 54520), (435, 50384), (464, 47235), (470, 46632), (536, 40890), (564, 38860), (580, 37788), (670, 32712), (696, 31490), (705, 31088), (752, 29145), (804, 27260), (870, 25192), (940, 23316), (1005, 21808), (1072, 20445), (1128, 19430), (1160, 18894), (1340, 16356), (1363, 16080), (1392, 15745), (1410, 15544), (1608, 13630), (1740, 12596), (1880, 11658), (1943, 11280), (2010, 10904), (2256, 9715), (2320, 9447), (2680, 8178), (2726, 8040), (2820, 7772), (3149, 6960), (3216, 6815), (3480, 6298), (3760, 5829), (3886, 5640), (4020, 5452), (4089, 5360)]