21240624

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:346

約数の個数: 80

約数和(自身を含む): 57746304

約数和(自身を除く): 36505680

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 43, 48, 82, 86, 123, 129, 164, 172, 246, 251, 258, 328, 344, 492, 502, 516, 656, 688, 753, 984, 1004, 1032, 1506, 1763, 1968, 2008, 2064, 3012, 3526, 4016, 5289, 6024, 7052, 10291, 10578, 10793, 12048, 14104, 20582, 21156, 21586, 28208, 30873, 32379, 41164, 42312, 43172, 61746, 64758, 82328, 84624, 86344, 123492, 129516, 164656, 172688, 246984, 259032, 442513, 493968, 518064, 885026, 1327539, 1770052, 2655078, 3540104, 5310156, 7080208, 10620312, 21240624]

約数ペア:

[(1, 21240624), (2, 10620312), (3, 7080208), (4, 5310156), (6, 3540104), (8, 2655078), (12, 1770052), (16, 1327539), (24, 885026), (41, 518064), (43, 493968), (48, 442513), (82, 259032), (86, 246984), (123, 172688), (129, 164656), (164, 129516), (172, 123492), (246, 86344), (251, 84624), (258, 82328), (328, 64758), (344, 61746), (492, 43172), (502, 42312), (516, 41164), (656, 32379), (688, 30873), (753, 28208), (984, 21586), (1004, 21156), (1032, 20582), (1506, 14104), (1763, 12048), (1968, 10793), (2008, 10578), (2064, 10291), (3012, 7052), (3526, 6024), (4016, 5289)]