21316871925

素因数分解:

$3^3\times 5^2\times {\mathrm{1021}}^1\times {\mathrm{30931}}^1$

素因数の和:31971

約数の個数: 48

約数和(自身を含む): 39199504960

約数和(自身を除く): 17882633035

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 1021, 3063, 5105, 9189, 15315, 25525, 27567, 30931, 45945, 76575, 92793, 137835, 154655, 229725, 278379, 463965, 689175, 773275, 835137, 1391895, 2319825, 4175685, 6959475, 20878425, 31580551, 94741653, 157902755, 284224959, 473708265, 789513775, 852674877, 1421124795, 2368541325, 4263374385, 7105623975, 21316871925]

約数ペア:

[(1, 21316871925), (3, 7105623975), (5, 4263374385), (9, 2368541325), (15, 1421124795), (25, 852674877), (27, 789513775), (45, 473708265), (75, 284224959), (135, 157902755), (225, 94741653), (675, 31580551), (1021, 20878425), (3063, 6959475), (5105, 4175685), (9189, 2319825), (15315, 1391895), (25525, 835137), (27567, 773275), (30931, 689175), (45945, 463965), (76575, 278379), (92793, 229725), (137835, 154655)]