21073275

素因数分解:

$3^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{1283}}^1$

素因数の和:1372

約数の個数: 36

約数和(自身を含む): 38291448

約数和(自身を除く): 17218173

約数列:

[1, 3, 5, 9, 15, 25, 45, 73, 75, 219, 225, 365, 657, 1095, 1283, 1825, 3285, 3849, 5475, 6415, 11547, 16425, 19245, 32075, 57735, 93659, 96225, 280977, 288675, 468295, 842931, 1404885, 2341475, 4214655, 7024425, 21073275]

約数ペア:

[(1, 21073275), (3, 7024425), (5, 4214655), (9, 2341475), (15, 1404885), (25, 842931), (45, 468295), (73, 288675), (75, 280977), (219, 96225), (225, 93659), (365, 57735), (657, 32075), (1095, 19245), (1283, 16425), (1825, 11547), (3285, 6415), (3849, 5475)]