21898020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2417}}^1$

素因数の和:2580

約数の個数: 48

約数和(自身を含む): 61746048

約数和(自身を除く): 39848028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 151, 302, 453, 604, 755, 906, 1510, 1812, 2265, 2417, 3020, 4530, 4834, 7251, 9060, 9668, 12085, 14502, 24170, 29004, 36255, 48340, 72510, 145020, 364967, 729934, 1094901, 1459868, 1824835, 2189802, 3649670, 4379604, 5474505, 7299340, 10949010, 21898020]

約数ペア:

[(1, 21898020), (2, 10949010), (3, 7299340), (4, 5474505), (5, 4379604), (6, 3649670), (10, 2189802), (12, 1824835), (15, 1459868), (20, 1094901), (30, 729934), (60, 364967), (151, 145020), (302, 72510), (453, 48340), (604, 36255), (755, 29004), (906, 24170), (1510, 14502), (1812, 12085), (2265, 9668), (2417, 9060), (3020, 7251), (4530, 4834)]