21291180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4861}}^1$

素因数の和:4946

約数の個数: 48

約数和(自身を含む): 60444384

約数和(自身を除く): 39153204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 4861, 9722, 14583, 19444, 24305, 29166, 48610, 58332, 72915, 97220, 145830, 291660, 354853, 709706, 1064559, 1419412, 1774265, 2129118, 3548530, 4258236, 5322795, 7097060, 10645590, 21291180]

約数ペア:

[(1, 21291180), (2, 10645590), (3, 7097060), (4, 5322795), (5, 4258236), (6, 3548530), (10, 2129118), (12, 1774265), (15, 1419412), (20, 1064559), (30, 709706), (60, 354853), (73, 291660), (146, 145830), (219, 97220), (292, 72915), (365, 58332), (438, 48610), (730, 29166), (876, 24305), (1095, 19444), (1460, 14583), (2190, 9722), (4380, 4861)]