28787242

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1129}}^1$

素因数の和:1222

約数の個数: 32

約数和(自身を含む): 50443200

約数和(自身を除く): 21655958

約数列:

[1, 2, 11, 19, 22, 38, 61, 122, 209, 418, 671, 1129, 1159, 1342, 2258, 2318, 12419, 12749, 21451, 24838, 25498, 42902, 68869, 137738, 235961, 471922, 757559, 1308511, 1515118, 2617022, 14393621, 28787242]

約数ペア:

[(1, 28787242), (2, 14393621), (11, 2617022), (19, 1515118), (22, 1308511), (38, 757559), (61, 471922), (122, 235961), (209, 137738), (418, 68869), (671, 42902), (1129, 25498), (1159, 24838), (1342, 21451), (2258, 12749), (2318, 12419)]