21170830

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2203}}^1$

素因数の和:2272

約数の個数: 24

約数和(自身を含む): 39394296

約数和(自身を除く): 18223466

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1922, 2203, 4406, 4805, 9610, 11015, 22030, 68293, 136586, 341465, 682930, 2117083, 4234166, 10585415, 21170830]

約数ペア:

[(1, 21170830), (2, 10585415), (5, 4234166), (10, 2117083), (31, 682930), (62, 341465), (155, 136586), (310, 68293), (961, 22030), (1922, 11015), (2203, 9610), (4406, 4805)]