31981521

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{587}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 50577408

約数和(自身を除く): 18595887

約数列:

[1, 3, 11, 13, 33, 39, 127, 143, 381, 429, 587, 1397, 1651, 1761, 4191, 4953, 6457, 7631, 18161, 19371, 22893, 54483, 74549, 83941, 223647, 251823, 820039, 969137, 2460117, 2907411, 10660507, 31981521]

約数ペア:

[(1, 31981521), (3, 10660507), (11, 2907411), (13, 2460117), (33, 969137), (39, 820039), (127, 251823), (143, 223647), (381, 83941), (429, 74549), (587, 54483), (1397, 22893), (1651, 19371), (1761, 18161), (4191, 7631), (4953, 6457)]