215047365

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{64871}}^1$

素因数の和:64909

約数の個数: 32

約数和(自身を含む): 392345856

約数和(自身を除く): 177298491

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 64871, 194613, 324355, 843323, 973065, 1102807, 2529969, 3308421, 4216615, 5514035, 12649845, 14336491, 16542105, 43009473, 71682455, 215047365]

約数ペア:

[(1, 215047365), (3, 71682455), (5, 43009473), (13, 16542105), (15, 14336491), (17, 12649845), (39, 5514035), (51, 4216615), (65, 3308421), (85, 2529969), (195, 1102807), (221, 973065), (255, 843323), (663, 324355), (1105, 194613), (3315, 64871)]