21444435

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 38918880

約数和(自身を除く): 17474445

約数列:

[1, 3, 5, 9, 15, 41, 45, 59, 123, 177, 197, 205, 295, 369, 531, 591, 615, 885, 985, 1773, 1845, 2419, 2655, 2955, 7257, 8077, 8865, 11623, 12095, 21771, 24231, 34869, 36285, 40385, 58115, 72693, 104607, 108855, 121155, 174345, 363465, 476543, 523035, 1429629, 2382715, 4288887, 7148145, 21444435]

約数ペア:

[(1, 21444435), (3, 7148145), (5, 4288887), (9, 2382715), (15, 1429629), (41, 523035), (45, 476543), (59, 363465), (123, 174345), (177, 121155), (197, 108855), (205, 104607), (295, 72693), (369, 58115), (531, 40385), (591, 36285), (615, 34869), (885, 24231), (985, 21771), (1773, 12095), (1845, 11623), (2419, 8865), (2655, 8077), (2955, 7257)]