20404358

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 34776000

約数和(自身を除く): 14371642

約数列:

[1, 2, 13, 23, 26, 46, 149, 229, 298, 299, 458, 598, 1937, 2977, 3427, 3874, 5267, 5954, 6854, 10534, 34121, 44551, 68242, 68471, 89102, 136942, 443573, 784783, 887146, 1569566, 10202179, 20404358]

約数ペア:

[(1, 20404358), (2, 10202179), (13, 1569566), (23, 887146), (26, 784783), (46, 443573), (149, 136942), (229, 89102), (298, 68471), (299, 68242), (458, 44551), (598, 34121), (1937, 10534), (2977, 6854), (3427, 5954), (3874, 5267)]