20945144

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12527}}^1$

素因数の和:12563

約数の個数: 32

約数和(自身を含む): 45100800

約数和(自身を除く): 24155656

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12527, 25054, 50108, 100216, 137797, 238013, 275594, 476026, 551188, 952052, 1102376, 1904104, 2618143, 5236286, 10472572, 20945144]

約数ペア:

[(1, 20945144), (2, 10472572), (4, 5236286), (8, 2618143), (11, 1904104), (19, 1102376), (22, 952052), (38, 551188), (44, 476026), (76, 275594), (88, 238013), (152, 137797), (209, 100216), (418, 50108), (836, 25054), (1672, 12527)]