21479490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5821}}^1$

素因数の和:5875

約数の個数: 48

約数和(自身を含む): 57218616

約数和(自身を除く): 35739126

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 41, 45, 82, 90, 123, 205, 246, 369, 410, 615, 738, 1230, 1845, 3690, 5821, 11642, 17463, 29105, 34926, 52389, 58210, 87315, 104778, 174630, 238661, 261945, 477322, 523890, 715983, 1193305, 1431966, 2147949, 2386610, 3579915, 4295898, 7159830, 10739745, 21479490]

約数ペア:

[(1, 21479490), (2, 10739745), (3, 7159830), (5, 4295898), (6, 3579915), (9, 2386610), (10, 2147949), (15, 1431966), (18, 1193305), (30, 715983), (41, 523890), (45, 477322), (82, 261945), (90, 238661), (123, 174630), (205, 104778), (246, 87315), (369, 58210), (410, 52389), (615, 34926), (738, 29105), (1230, 17463), (1845, 11642), (3690, 5821)]