21337095

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{443}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 39000960

約数和(自身を除く): 17663865

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 169, 195, 247, 285, 443, 507, 741, 845, 1235, 1329, 2215, 2535, 3211, 3705, 5759, 6645, 8417, 9633, 16055, 17277, 25251, 28795, 42085, 48165, 74867, 86385, 109421, 126255, 224601, 328263, 374335, 547105, 1123005, 1422473, 1641315, 4267419, 7112365, 21337095]

約数ペア:

[(1, 21337095), (3, 7112365), (5, 4267419), (13, 1641315), (15, 1422473), (19, 1123005), (39, 547105), (57, 374335), (65, 328263), (95, 224601), (169, 126255), (195, 109421), (247, 86385), (285, 74867), (443, 48165), (507, 42085), (741, 28795), (845, 25251), (1235, 17277), (1329, 16055), (2215, 9633), (2535, 8417), (3211, 6645), (3705, 5759)]