21032440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3677}}^1$

素因数の和:3712

約数の個数: 64

約数和(自身を含む): 55611360

約数和(自身を除く): 34578920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3677, 5720, 7354, 14708, 18385, 29416, 36770, 40447, 47801, 73540, 80894, 95602, 147080, 161788, 191204, 202235, 239005, 323576, 382408, 404470, 478010, 525811, 808940, 956020, 1051622, 1617880, 1912040, 2103244, 2629055, 4206488, 5258110, 10516220, 21032440]

約数ペア:

[(1, 21032440), (2, 10516220), (4, 5258110), (5, 4206488), (8, 2629055), (10, 2103244), (11, 1912040), (13, 1617880), (20, 1051622), (22, 956020), (26, 808940), (40, 525811), (44, 478010), (52, 404470), (55, 382408), (65, 323576), (88, 239005), (104, 202235), (110, 191204), (130, 161788), (143, 147080), (220, 95602), (260, 80894), (286, 73540), (440, 47801), (520, 40447), (572, 36770), (715, 29416), (1144, 18385), (1430, 14708), (2860, 7354), (3677, 5720)]