21133845

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4231}}^1$

素因数の和:4282

約数の個数: 32

約数和(自身を含む): 38595840

約数和(自身を除く): 17461995

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4231, 4995, 12693, 21155, 38079, 63465, 114237, 156547, 190395, 469641, 571185, 782735, 1408923, 2348205, 4226769, 7044615, 21133845]

約数ペア:

[(1, 21133845), (3, 7044615), (5, 4226769), (9, 2348205), (15, 1408923), (27, 782735), (37, 571185), (45, 469641), (111, 190395), (135, 156547), (185, 114237), (333, 63465), (555, 38079), (999, 21155), (1665, 12693), (4231, 4995)]