1640107

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:258

約数の個数: 16

約数和(自身を含む): 1999872

約数和(自身を除く): 359765

約数列:

[1, 7, 23, 61, 161, 167, 427, 1169, 1403, 3841, 9821, 10187, 26887, 71309, 234301, 1640107]

約数ペア:

[(1, 1640107), (7, 234301), (23, 71309), (61, 26887), (161, 10187), (167, 9821), (427, 3841), (1169, 1403)]