201621165

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{220351}}^1$

素因数の和:220420

約数の個数: 16

約数和(自身を含む): 327883776

約数和(自身を除く): 126262611

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 220351, 661053, 1101755, 3305265, 13441411, 40324233, 67207055, 201621165]

約数ペア:

[(1, 201621165), (3, 67207055), (5, 40324233), (15, 13441411), (61, 3305265), (183, 1101755), (305, 661053), (915, 220351)]