21355100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16427}}^1$

素因数の和:16454

約数の個数: 36

約数和(自身を含む): 49908264

約数和(自身を除く): 28553164

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16427, 32854, 65708, 82135, 164270, 213551, 328540, 410675, 427102, 821350, 854204, 1067755, 1642700, 2135510, 4271020, 5338775, 10677550, 21355100]

約数ペア:

[(1, 21355100), (2, 10677550), (4, 5338775), (5, 4271020), (10, 2135510), (13, 1642700), (20, 1067755), (25, 854204), (26, 821350), (50, 427102), (52, 410675), (65, 328540), (100, 213551), (130, 164270), (260, 82135), (325, 65708), (650, 32854), (1300, 16427)]