21906792

素因数分解:

$2^3\times 3^2\times {\mathrm{41}}^2\times {\mathrm{181}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 61149270

約数和(自身を除く): 39242478

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 41, 72, 82, 123, 164, 181, 246, 328, 362, 369, 492, 543, 724, 738, 984, 1086, 1448, 1476, 1629, 1681, 2172, 2952, 3258, 3362, 4344, 5043, 6516, 6724, 7421, 10086, 13032, 13448, 14842, 15129, 20172, 22263, 29684, 30258, 40344, 44526, 59368, 60516, 66789, 89052, 121032, 133578, 178104, 267156, 304261, 534312, 608522, 912783, 1217044, 1825566, 2434088, 2738349, 3651132, 5476698, 7302264, 10953396, 21906792]

約数ペア:

[(1, 21906792), (2, 10953396), (3, 7302264), (4, 5476698), (6, 3651132), (8, 2738349), (9, 2434088), (12, 1825566), (18, 1217044), (24, 912783), (36, 608522), (41, 534312), (72, 304261), (82, 267156), (123, 178104), (164, 133578), (181, 121032), (246, 89052), (328, 66789), (362, 60516), (369, 59368), (492, 44526), (543, 40344), (724, 30258), (738, 29684), (984, 22263), (1086, 20172), (1448, 15129), (1476, 14842), (1629, 13448), (1681, 13032), (2172, 10086), (2952, 7421), (3258, 6724), (3362, 6516), (4344, 5043)]