20403766

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{1723}}^1$

素因数の和:1947

約数の個数: 16

約数和(自身を含む): 31776768

約数和(自身を除く): 11373002

約数列:

[1, 2, 31, 62, 191, 382, 1723, 3446, 5921, 11842, 53413, 106826, 329093, 658186, 10201883, 20403766]

約数ペア:

[(1, 20403766), (2, 10201883), (31, 658186), (62, 329093), (191, 106826), (382, 53413), (1723, 11842), (3446, 5921)]