20651235

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{487}}^1$

素因数の和:763

約数の個数: 32

約数和(自身を含む): 36260352

約数和(自身を除く): 15609117

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 257, 487, 771, 1285, 1461, 2435, 2827, 3855, 5357, 7305, 8481, 14135, 16071, 26785, 42405, 80355, 125159, 375477, 625795, 1376749, 1877385, 4130247, 6883745, 20651235]

約数ペア:

[(1, 20651235), (3, 6883745), (5, 4130247), (11, 1877385), (15, 1376749), (33, 625795), (55, 375477), (165, 125159), (257, 80355), (487, 42405), (771, 26785), (1285, 16071), (1461, 14135), (2435, 8481), (2827, 7305), (3855, 5357)]