21023964

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{269}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 57788640

約数和(自身を除く): 36764676

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 167, 234, 269, 334, 468, 501, 538, 668, 807, 1002, 1076, 1503, 1614, 2004, 2171, 2421, 3006, 3228, 3497, 4342, 4842, 6012, 6513, 6994, 8684, 9684, 10491, 13026, 13988, 19539, 20982, 26052, 31473, 39078, 41964, 44923, 62946, 78156, 89846, 125892, 134769, 179692, 269538, 404307, 539076, 583999, 808614, 1167998, 1617228, 1751997, 2335996, 3503994, 5255991, 7007988, 10511982, 21023964]

約数ペア:

[(1, 21023964), (2, 10511982), (3, 7007988), (4, 5255991), (6, 3503994), (9, 2335996), (12, 1751997), (13, 1617228), (18, 1167998), (26, 808614), (36, 583999), (39, 539076), (52, 404307), (78, 269538), (117, 179692), (156, 134769), (167, 125892), (234, 89846), (269, 78156), (334, 62946), (468, 44923), (501, 41964), (538, 39078), (668, 31473), (807, 26052), (1002, 20982), (1076, 19539), (1503, 13988), (1614, 13026), (2004, 10491), (2171, 9684), (2421, 8684), (3006, 6994), (3228, 6513), (3497, 6012), (4342, 4842)]