21263502

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 48121920

約数和(自身を除く): 26858418

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 61, 78, 82, 109, 122, 123, 183, 218, 246, 327, 366, 533, 654, 793, 1066, 1417, 1586, 1599, 2379, 2501, 2834, 3198, 4251, 4469, 4758, 5002, 6649, 7503, 8502, 8938, 13298, 13407, 15006, 19947, 26814, 32513, 39894, 58097, 65026, 86437, 97539, 116194, 172874, 174291, 195078, 259311, 272609, 348582, 518622, 545218, 817827, 1635654, 3543917, 7087834, 10631751, 21263502]

約数ペア:

[(1, 21263502), (2, 10631751), (3, 7087834), (6, 3543917), (13, 1635654), (26, 817827), (39, 545218), (41, 518622), (61, 348582), (78, 272609), (82, 259311), (109, 195078), (122, 174291), (123, 172874), (183, 116194), (218, 97539), (246, 86437), (327, 65026), (366, 58097), (533, 39894), (654, 32513), (793, 26814), (1066, 19947), (1417, 15006), (1586, 13407), (1599, 13298), (2379, 8938), (2501, 8502), (2834, 7503), (3198, 6649), (4251, 5002), (4469, 4758)]