21371675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3461}}^1$

素因数の和:3503

約数の個数: 24

約数和(自身を含む): 30050160

約数和(自身を除く): 8678485

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 3461, 6175, 17305, 44993, 65759, 86525, 224965, 328795, 854867, 1124825, 1643975, 4274335, 21371675]

約数ペア:

[(1, 21371675), (5, 4274335), (13, 1643975), (19, 1124825), (25, 854867), (65, 328795), (95, 224965), (247, 86525), (325, 65759), (475, 44993), (1235, 17305), (3461, 6175)]