21182278

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:376

約数の個数: 32

約数和(自身を含む): 35661024

約数和(自身を除く): 14478746

約数列:

[1, 2, 13, 26, 37, 74, 97, 194, 227, 454, 481, 962, 1261, 2522, 2951, 3589, 5902, 7178, 8399, 16798, 22019, 44038, 46657, 93314, 109187, 218374, 286247, 572494, 814703, 1629406, 10591139, 21182278]

約数ペア:

[(1, 21182278), (2, 10591139), (13, 1629406), (26, 814703), (37, 572494), (74, 286247), (97, 218374), (194, 109187), (227, 93314), (454, 46657), (481, 44038), (962, 22019), (1261, 16798), (2522, 8399), (2951, 7178), (3589, 5902)]