21029060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2789}}^1$

素因数の和:2840

約数の個数: 48

約数和(自身を含む): 49215600

約数和(自身を除く): 28186540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 2789, 3770, 5578, 7540, 11156, 13945, 27890, 36257, 55780, 72514, 80881, 145028, 161762, 181285, 323524, 362570, 404405, 725140, 808810, 1051453, 1617620, 2102906, 4205812, 5257265, 10514530, 21029060]

約数ペア:

[(1, 21029060), (2, 10514530), (4, 5257265), (5, 4205812), (10, 2102906), (13, 1617620), (20, 1051453), (26, 808810), (29, 725140), (52, 404405), (58, 362570), (65, 323524), (116, 181285), (130, 161762), (145, 145028), (260, 80881), (290, 72514), (377, 55780), (580, 36257), (754, 27890), (1508, 13945), (1885, 11156), (2789, 7540), (3770, 5578)]