19915721253

素因数分解:

$3^2\times {\mathrm{251}}^1\times {\mathrm{881}}^1\times {\mathrm{10007}}^1$

素因数の和:11145

約数の個数: 24

約数和(自身を含む): 28917435456

約数和(自身を除く): 9001714203

約数列:

[1, 3, 9, 251, 753, 881, 2259, 2643, 7929, 10007, 30021, 90063, 221131, 663393, 1990179, 2511757, 7535271, 8816167, 22605813, 26448501, 79345503, 2212857917, 6638573751, 19915721253]

約数ペア:

[(1, 19915721253), (3, 6638573751), (9, 2212857917), (251, 79345503), (753, 26448501), (881, 22605813), (2259, 8816167), (2643, 7535271), (7929, 2511757), (10007, 1990179), (30021, 663393), (90063, 221131)]