21590500

素因数分解:

$2^2\times 5^3\times {\mathrm{29}}^1\times {\mathrm{1489}}^1$

素因数の和:1537

約数の個数: 48

約数和(自身を含む): 48812400

約数和(自身を除く): 27221900

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 125, 145, 250, 290, 500, 580, 725, 1450, 1489, 2900, 2978, 3625, 5956, 7250, 7445, 14500, 14890, 29780, 37225, 43181, 74450, 86362, 148900, 172724, 186125, 215905, 372250, 431810, 744500, 863620, 1079525, 2159050, 4318100, 5397625, 10795250, 21590500]

約数ペア:

[(1, 21590500), (2, 10795250), (4, 5397625), (5, 4318100), (10, 2159050), (20, 1079525), (25, 863620), (29, 744500), (50, 431810), (58, 372250), (100, 215905), (116, 186125), (125, 172724), (145, 148900), (250, 86362), (290, 74450), (500, 43181), (580, 37225), (725, 29780), (1450, 14890), (1489, 14500), (2900, 7445), (2978, 7250), (3625, 5956)]