21574388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15817}}^1$

素因数の和:15863

約数の個数: 24

約数和(自身を含む): 42518784

約数和(自身を除く): 20944396

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 15817, 31634, 63268, 173987, 347974, 490327, 695948, 980654, 1961308, 5393597, 10787194, 21574388]

約数ペア:

[(1, 21574388), (2, 10787194), (4, 5393597), (11, 1961308), (22, 980654), (31, 695948), (44, 490327), (62, 347974), (124, 173987), (341, 63268), (682, 31634), (1364, 15817)]