21412920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178441}}^1$

素因数の和:178455

約数の個数: 32

約数和(自身を含む): 64239120

約数和(自身を除く): 42826200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178441, 356882, 535323, 713764, 892205, 1070646, 1427528, 1784410, 2141292, 2676615, 3568820, 4282584, 5353230, 7137640, 10706460, 21412920]

約数ペア:

[(1, 21412920), (2, 10706460), (3, 7137640), (4, 5353230), (5, 4282584), (6, 3568820), (8, 2676615), (10, 2141292), (12, 1784410), (15, 1427528), (20, 1070646), (24, 892205), (30, 713764), (40, 535323), (60, 356882), (120, 178441)]