21207240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{58909}}^1$

素因数の和:58926

約数の個数: 48

約数和(自身を含む): 68924700

約数和(自身を除く): 47717460

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 58909, 117818, 176727, 235636, 294545, 353454, 471272, 530181, 589090, 706908, 883635, 1060362, 1178180, 1413816, 1767270, 2120724, 2356360, 2650905, 3534540, 4241448, 5301810, 7069080, 10603620, 21207240]

約数ペア:

[(1, 21207240), (2, 10603620), (3, 7069080), (4, 5301810), (5, 4241448), (6, 3534540), (8, 2650905), (9, 2356360), (10, 2120724), (12, 1767270), (15, 1413816), (18, 1178180), (20, 1060362), (24, 883635), (30, 706908), (36, 589090), (40, 530181), (45, 471272), (60, 353454), (72, 294545), (90, 235636), (120, 176727), (180, 117818), (360, 58909)]