21753528

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 56453760

約数和(自身を除く): 34700232

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 107, 129, 172, 197, 214, 258, 321, 344, 394, 428, 516, 591, 642, 788, 856, 1032, 1182, 1284, 1576, 2364, 2568, 4601, 4728, 8471, 9202, 13803, 16942, 18404, 21079, 25413, 27606, 33884, 36808, 42158, 50826, 55212, 63237, 67768, 84316, 101652, 110424, 126474, 168632, 203304, 252948, 505896, 906397, 1812794, 2719191, 3625588, 5438382, 7251176, 10876764, 21753528]

約数ペア:

[(1, 21753528), (2, 10876764), (3, 7251176), (4, 5438382), (6, 3625588), (8, 2719191), (12, 1812794), (24, 906397), (43, 505896), (86, 252948), (107, 203304), (129, 168632), (172, 126474), (197, 110424), (214, 101652), (258, 84316), (321, 67768), (344, 63237), (394, 55212), (428, 50826), (516, 42158), (591, 36808), (642, 33884), (788, 27606), (856, 25413), (1032, 21079), (1182, 18404), (1284, 16942), (1576, 13803), (2364, 9202), (2568, 8471), (4601, 4728)]