20658708

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1123}}^1$

素因数の和:1213

約数の個数: 72

約数和(自身を含む): 60552128

約数和(自身を除く): 39893420

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 73, 84, 126, 146, 219, 252, 292, 438, 511, 657, 876, 1022, 1123, 1314, 1533, 2044, 2246, 2628, 3066, 3369, 4492, 4599, 6132, 6738, 7861, 9198, 10107, 13476, 15722, 18396, 20214, 23583, 31444, 40428, 47166, 70749, 81979, 94332, 141498, 163958, 245937, 282996, 327916, 491874, 573853, 737811, 983748, 1147706, 1475622, 1721559, 2295412, 2951244, 3443118, 5164677, 6886236, 10329354, 20658708]

約数ペア:

[(1, 20658708), (2, 10329354), (3, 6886236), (4, 5164677), (6, 3443118), (7, 2951244), (9, 2295412), (12, 1721559), (14, 1475622), (18, 1147706), (21, 983748), (28, 737811), (36, 573853), (42, 491874), (63, 327916), (73, 282996), (84, 245937), (126, 163958), (146, 141498), (219, 94332), (252, 81979), (292, 70749), (438, 47166), (511, 40428), (657, 31444), (876, 23583), (1022, 20214), (1123, 18396), (1314, 15722), (1533, 13476), (2044, 10107), (2246, 9198), (2628, 7861), (3066, 6738), (3369, 6132), (4492, 4599)]