20651518

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{373}}^1$

素因数の和:472

約数の個数: 32

約数和(自身を含む): 34467840

約数和(自身を除く): 13816322

約数列:

[1, 2, 19, 31, 38, 47, 62, 94, 373, 589, 746, 893, 1178, 1457, 1786, 2914, 7087, 11563, 14174, 17531, 23126, 27683, 35062, 55366, 219697, 333089, 439394, 543461, 666178, 1086922, 10325759, 20651518]

約数ペア:

[(1, 20651518), (2, 10325759), (19, 1086922), (31, 666178), (38, 543461), (47, 439394), (62, 333089), (94, 219697), (373, 55366), (589, 35062), (746, 27683), (893, 23126), (1178, 17531), (1457, 14174), (1786, 11563), (2914, 7087)]