21590120

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{2357}}^1$

素因数の和:2597

約数の個数: 32

約数和(自身を含む): 48810600

約数和(自身を除く): 27220480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 2357, 4580, 4714, 9160, 9428, 11785, 18856, 23570, 47140, 94280, 539753, 1079506, 2159012, 2698765, 4318024, 5397530, 10795060, 21590120]

約数ペア:

[(1, 21590120), (2, 10795060), (4, 5397530), (5, 4318024), (8, 2698765), (10, 2159012), (20, 1079506), (40, 539753), (229, 94280), (458, 47140), (916, 23570), (1145, 18856), (1832, 11785), (2290, 9428), (2357, 9160), (4580, 4714)]