16121925

素因数分解:

$3^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{907}}^1$

素因数の和:1002

約数の個数: 36

約数和(自身を含む): 29273920

約数和(自身を除く): 13151995

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 79, 225, 237, 395, 711, 907, 1185, 1975, 2721, 3555, 4535, 5925, 8163, 13605, 17775, 22675, 40815, 68025, 71653, 204075, 214959, 358265, 644877, 1074795, 1791325, 3224385, 5373975, 16121925]

約数ペア:

[(1, 16121925), (3, 5373975), (5, 3224385), (9, 1791325), (15, 1074795), (25, 644877), (45, 358265), (75, 214959), (79, 204075), (225, 71653), (237, 68025), (395, 40815), (711, 22675), (907, 17775), (1185, 13605), (1975, 8163), (2721, 5925), (3555, 4535)]