21177825

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{12277}}^1$

素因数の和:12313

約数の個数: 24

約数和(自身を含む): 36539328

約数和(自身を除く): 15361503

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 12277, 36831, 61385, 184155, 282371, 306925, 847113, 920775, 1411855, 4235565, 7059275, 21177825]

約数ペア:

[(1, 21177825), (3, 7059275), (5, 4235565), (15, 1411855), (23, 920775), (25, 847113), (69, 306925), (75, 282371), (115, 184155), (345, 61385), (575, 36831), (1725, 12277)]