21298914

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13003}}^1$

素因数の和:13031

約数の個数: 48

約数和(自身を含む): 56801472

約数和(自身を除く): 35502558

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 13003, 26006, 39009, 78018, 91021, 117027, 169039, 182042, 234054, 273063, 338078, 507117, 546126, 819189, 1014234, 1183273, 1521351, 1638378, 2366546, 3042702, 3549819, 7099638, 10649457, 21298914]

約数ペア:

[(1, 21298914), (2, 10649457), (3, 7099638), (6, 3549819), (7, 3042702), (9, 2366546), (13, 1638378), (14, 1521351), (18, 1183273), (21, 1014234), (26, 819189), (39, 546126), (42, 507117), (63, 338078), (78, 273063), (91, 234054), (117, 182042), (126, 169039), (182, 117027), (234, 91021), (273, 78018), (546, 39009), (819, 26006), (1638, 13003)]