13405257

素因数分解:

$3^4\times {\mathrm{167}}^1\times {\mathrm{991}}^1$

素因数の和:1170

約数の個数: 20

約数和(自身を含む): 20165376

約数和(自身を除く): 6760119

約数列:

[1, 3, 9, 27, 81, 167, 501, 991, 1503, 2973, 4509, 8919, 13527, 26757, 80271, 165497, 496491, 1489473, 4468419, 13405257]

約数ペア:

[(1, 13405257), (3, 4468419), (9, 1489473), (27, 496491), (81, 165497), (167, 80271), (501, 26757), (991, 13527), (1503, 8919), (2973, 4509)]