21087630

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5449}}^1$

素因数の和:5505

約数の個数: 48

約数和(自身を含む): 56113200

約数和(自身を除く): 35025570

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 5449, 10898, 16347, 27245, 32694, 49041, 54490, 81735, 98082, 163470, 234307, 245205, 468614, 490410, 702921, 1171535, 1405842, 2108763, 2343070, 3514605, 4217526, 7029210, 10543815, 21087630]

約数ペア:

[(1, 21087630), (2, 10543815), (3, 7029210), (5, 4217526), (6, 3514605), (9, 2343070), (10, 2108763), (15, 1405842), (18, 1171535), (30, 702921), (43, 490410), (45, 468614), (86, 245205), (90, 234307), (129, 163470), (215, 98082), (258, 81735), (387, 54490), (430, 49041), (645, 32694), (774, 27245), (1290, 16347), (1935, 10898), (3870, 5449)]