21663352

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 42066000

約数和(自身を除く): 20402648

約数列:

[1, 2, 4, 8, 37, 74, 148, 163, 296, 326, 449, 652, 898, 1304, 1796, 3592, 6031, 12062, 16613, 24124, 33226, 48248, 66452, 73187, 132904, 146374, 292748, 585496, 2707919, 5415838, 10831676, 21663352]

約数ペア:

[(1, 21663352), (2, 10831676), (4, 5415838), (8, 2707919), (37, 585496), (74, 292748), (148, 146374), (163, 132904), (296, 73187), (326, 66452), (449, 48248), (652, 33226), (898, 24124), (1304, 16613), (1796, 12062), (3592, 6031)]