645513

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:676

約数の個数: 16

約数和(自身を含む): 970752

約数和(自身を除く): 325239

約数列:

[1, 3, 11, 31, 33, 93, 341, 631, 1023, 1893, 6941, 19561, 20823, 58683, 215171, 645513]

約数ペア:

[(1, 645513), (3, 215171), (11, 58683), (31, 20823), (33, 19561), (93, 6941), (341, 1893), (631, 1023)]