21000612295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1283}}^1\times {\mathrm{14813}}^1$

素因数の和:16131

約数の個数: 32

約数和(自身を含む): 28760018112

約数和(自身を除く): 7759405817

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 1283, 6415, 14813, 16679, 21811, 74065, 83395, 109055, 192569, 251821, 283543, 962845, 1259105, 1417715, 3273673, 16368365, 19005079, 95025395, 247066027, 323086343, 1235330135, 1615431715, 4200122459, 21000612295]

約数ペア:

[(1, 21000612295), (5, 4200122459), (13, 1615431715), (17, 1235330135), (65, 323086343), (85, 247066027), (221, 95025395), (1105, 19005079), (1283, 16368365), (6415, 3273673), (14813, 1417715), (16679, 1259105), (21811, 962845), (74065, 283543), (83395, 251821), (109055, 192569)]