19620406

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 32810400

約数和(自身を除く): 13189994

約数列:

[1, 2, 13, 26, 61, 89, 122, 139, 178, 278, 793, 1157, 1586, 1807, 2314, 3614, 5429, 8479, 10858, 12371, 16958, 24742, 70577, 110227, 141154, 160823, 220454, 321646, 754631, 1509262, 9810203, 19620406]

約数ペア:

[(1, 19620406), (2, 9810203), (13, 1509262), (26, 754631), (61, 321646), (89, 220454), (122, 160823), (139, 141154), (178, 110227), (278, 70577), (793, 24742), (1157, 16958), (1586, 12371), (1807, 10858), (2314, 8479), (3614, 5429)]