212315715

素因数分解:

$3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{8689}}^1$

素因数の和:8884

約数の個数: 32

約数和(自身を含む): 379579200

約数和(自身を除く): 167263485

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 181, 543, 905, 1629, 2715, 4887, 8145, 8689, 24435, 26067, 43445, 78201, 130335, 234603, 391005, 1173015, 1572709, 4718127, 7863545, 14154381, 23590635, 42463143, 70771905, 212315715]

約数ペア:

[(1, 212315715), (3, 70771905), (5, 42463143), (9, 23590635), (15, 14154381), (27, 7863545), (45, 4718127), (135, 1572709), (181, 1173015), (543, 391005), (905, 234603), (1629, 130335), (2715, 78201), (4887, 43445), (8145, 26067), (8689, 24435)]