21498135

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{677}}^1$

素因数の和:787

約数の個数: 32

約数和(自身を含む): 36123840

約数和(自身を除く): 14625705

約数列:

[1, 3, 5, 15, 29, 73, 87, 145, 219, 365, 435, 677, 1095, 2031, 2117, 3385, 6351, 10155, 10585, 19633, 31755, 49421, 58899, 98165, 148263, 247105, 294495, 741315, 1433209, 4299627, 7166045, 21498135]

約数ペア:

[(1, 21498135), (3, 7166045), (5, 4299627), (15, 1433209), (29, 741315), (73, 294495), (87, 247105), (145, 148263), (219, 98165), (365, 58899), (435, 49421), (677, 31755), (1095, 19633), (2031, 10585), (2117, 10155), (3385, 6351)]