20785989105

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2275423}}^1$

素因数の和:2275470

約数の個数: 48

約数和(自身を含む): 42595937280

約数和(自身を除く): 21809948175

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 87, 105, 145, 203, 261, 315, 435, 609, 1015, 1305, 1827, 3045, 9135, 2275423, 6826269, 11377115, 15927961, 20478807, 34131345, 47783883, 65987267, 79639805, 102394035, 143351649, 197961801, 238919415, 329936335, 461910869, 593885403, 716758245, 989809005, 1385732607, 2309554345, 2969427015, 4157197821, 6928663035, 20785989105]

約数ペア:

[(1, 20785989105), (3, 6928663035), (5, 4157197821), (7, 2969427015), (9, 2309554345), (15, 1385732607), (21, 989809005), (29, 716758245), (35, 593885403), (45, 461910869), (63, 329936335), (87, 238919415), (105, 197961801), (145, 143351649), (203, 102394035), (261, 79639805), (315, 65987267), (435, 47783883), (609, 34131345), (1015, 20478807), (1305, 15927961), (1827, 11377115), (3045, 6826269), (9135, 2275423)]