19886562

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 44957952

約数和(自身を除く): 25071390

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 157, 186, 227, 279, 314, 454, 471, 558, 681, 942, 1362, 1413, 2043, 2826, 4086, 4867, 7037, 9734, 14074, 14601, 21111, 29202, 35639, 42222, 43803, 63333, 71278, 87606, 106917, 126666, 213834, 320751, 641502, 1104809, 2209618, 3314427, 6628854, 9943281, 19886562]

約数ペア:

[(1, 19886562), (2, 9943281), (3, 6628854), (6, 3314427), (9, 2209618), (18, 1104809), (31, 641502), (62, 320751), (93, 213834), (157, 126666), (186, 106917), (227, 87606), (279, 71278), (314, 63333), (454, 43803), (471, 42222), (558, 35639), (681, 29202), (942, 21111), (1362, 14601), (1413, 14074), (2043, 9734), (2826, 7037), (4086, 4867)]