21697910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 43559856

約数和(自身を除く): 21861946

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 169, 185, 338, 347, 370, 481, 694, 845, 962, 1690, 1735, 2405, 3470, 4511, 4810, 6253, 9022, 12506, 12839, 22555, 25678, 31265, 45110, 58643, 62530, 64195, 117286, 128390, 166907, 293215, 333814, 586430, 834535, 1669070, 2169791, 4339582, 10848955, 21697910]

約数ペア:

[(1, 21697910), (2, 10848955), (5, 4339582), (10, 2169791), (13, 1669070), (26, 834535), (37, 586430), (65, 333814), (74, 293215), (130, 166907), (169, 128390), (185, 117286), (338, 64195), (347, 62530), (370, 58643), (481, 45110), (694, 31265), (845, 25678), (962, 22555), (1690, 12839), (1735, 12506), (2405, 9022), (3470, 6253), (4511, 4810)]