21877560

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:498

約数の個数: 128

約数和(自身を含む): 74649600

約数和(自身を除く): 52772040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 180, 188, 216, 235, 270, 282, 360, 376, 423, 431, 470, 540, 564, 705, 846, 862, 940, 1080, 1128, 1269, 1293, 1410, 1692, 1724, 1880, 2115, 2155, 2538, 2586, 2820, 3384, 3448, 3879, 4230, 4310, 5076, 5172, 5640, 6345, 6465, 7758, 8460, 8620, 10152, 10344, 11637, 12690, 12930, 15516, 16920, 17240, 19395, 20257, 23274, 25380, 25860, 31032, 38790, 40514, 46548, 50760, 51720, 58185, 60771, 77580, 81028, 93096, 101285, 116370, 121542, 155160, 162056, 182313, 202570, 232740, 243084, 303855, 364626, 405140, 465480, 486168, 546939, 607710, 729252, 810280, 911565, 1093878, 1215420, 1458504, 1823130, 2187756, 2430840, 2734695, 3646260, 4375512, 5469390, 7292520, 10938780, 21877560]

約数ペア:

[(1, 21877560), (2, 10938780), (3, 7292520), (4, 5469390), (5, 4375512), (6, 3646260), (8, 2734695), (9, 2430840), (10, 2187756), (12, 1823130), (15, 1458504), (18, 1215420), (20, 1093878), (24, 911565), (27, 810280), (30, 729252), (36, 607710), (40, 546939), (45, 486168), (47, 465480), (54, 405140), (60, 364626), (72, 303855), (90, 243084), (94, 232740), (108, 202570), (120, 182313), (135, 162056), (141, 155160), (180, 121542), (188, 116370), (216, 101285), (235, 93096), (270, 81028), (282, 77580), (360, 60771), (376, 58185), (423, 51720), (431, 50760), (470, 46548), (540, 40514), (564, 38790), (705, 31032), (846, 25860), (862, 25380), (940, 23274), (1080, 20257), (1128, 19395), (1269, 17240), (1293, 16920), (1410, 15516), (1692, 12930), (1724, 12690), (1880, 11637), (2115, 10344), (2155, 10152), (2538, 8620), (2586, 8460), (2820, 7758), (3384, 6465), (3448, 6345), (3879, 5640), (4230, 5172), (4310, 5076)]