21251664

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{727}}^1$

素因数の和:777

約数の個数: 120

約数和(自身を含む): 70412160

約数和(自身を除く): 49160496

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 29, 36, 42, 48, 56, 58, 63, 72, 84, 87, 112, 116, 126, 144, 168, 174, 203, 232, 252, 261, 336, 348, 406, 464, 504, 522, 609, 696, 727, 812, 1008, 1044, 1218, 1392, 1454, 1624, 1827, 2088, 2181, 2436, 2908, 3248, 3654, 4176, 4362, 4872, 5089, 5816, 6543, 7308, 8724, 9744, 10178, 11632, 13086, 14616, 15267, 17448, 20356, 21083, 26172, 29232, 30534, 34896, 40712, 42166, 45801, 52344, 61068, 63249, 81424, 84332, 91602, 104688, 122136, 126498, 147581, 168664, 183204, 189747, 244272, 252996, 295162, 337328, 366408, 379494, 442743, 505992, 590324, 732816, 758988, 885486, 1011984, 1180648, 1328229, 1517976, 1770972, 2361296, 2656458, 3035952, 3541944, 5312916, 7083888, 10625832, 21251664]

約数ペア:

[(1, 21251664), (2, 10625832), (3, 7083888), (4, 5312916), (6, 3541944), (7, 3035952), (8, 2656458), (9, 2361296), (12, 1770972), (14, 1517976), (16, 1328229), (18, 1180648), (21, 1011984), (24, 885486), (28, 758988), (29, 732816), (36, 590324), (42, 505992), (48, 442743), (56, 379494), (58, 366408), (63, 337328), (72, 295162), (84, 252996), (87, 244272), (112, 189747), (116, 183204), (126, 168664), (144, 147581), (168, 126498), (174, 122136), (203, 104688), (232, 91602), (252, 84332), (261, 81424), (336, 63249), (348, 61068), (406, 52344), (464, 45801), (504, 42166), (522, 40712), (609, 34896), (696, 30534), (727, 29232), (812, 26172), (1008, 21083), (1044, 20356), (1218, 17448), (1392, 15267), (1454, 14616), (1624, 13086), (1827, 11632), (2088, 10178), (2181, 9744), (2436, 8724), (2908, 7308), (3248, 6543), (3654, 5816), (4176, 5089), (4362, 4872)]