20586285

素因数分解:

$3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1399}}^1$

素因数の和:1522

約数の個数: 32

約数和(自身を含む): 36960000

約数和(自身を除く): 16373715

約数列:

[1, 3, 5, 9, 15, 27, 45, 109, 135, 327, 545, 981, 1399, 1635, 2943, 4197, 4905, 6995, 12591, 14715, 20985, 37773, 62955, 152491, 188865, 457473, 762455, 1372419, 2287365, 4117257, 6862095, 20586285]

約数ペア:

[(1, 20586285), (3, 6862095), (5, 4117257), (9, 2287365), (15, 1372419), (27, 762455), (45, 457473), (109, 188865), (135, 152491), (327, 62955), (545, 37773), (981, 20985), (1399, 14715), (1635, 12591), (2943, 6995), (4197, 4905)]