20967583

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 27722240

約数和(自身を除く): 6754657

約数列:

[1, 7, 13, 19, 67, 91, 133, 181, 247, 469, 871, 1267, 1273, 1729, 2353, 3439, 6097, 8911, 12127, 16471, 16549, 24073, 44707, 84889, 115843, 157651, 230413, 312949, 1103557, 1612891, 2995369, 20967583]

約数ペア:

[(1, 20967583), (7, 2995369), (13, 1612891), (19, 1103557), (67, 312949), (91, 230413), (133, 157651), (181, 115843), (247, 84889), (469, 44707), (871, 24073), (1267, 16549), (1273, 16471), (1729, 12127), (2353, 8911), (3439, 6097)]