399440139

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{1913}}^1$

素因数の和:2147

約数の個数: 32

約数和(自身を含む): 622769664

約数和(自身を除く): 223329525

約数列:

[1, 3, 7, 21, 61, 163, 183, 427, 489, 1141, 1281, 1913, 3423, 5739, 9943, 13391, 29829, 40173, 69601, 116693, 208803, 311819, 350079, 816851, 935457, 2182733, 2450553, 6548199, 19020959, 57062877, 133146713, 399440139]

約数ペア:

[(1, 399440139), (3, 133146713), (7, 57062877), (21, 19020959), (61, 6548199), (163, 2450553), (183, 2182733), (427, 935457), (489, 816851), (1141, 350079), (1281, 311819), (1913, 208803), (3423, 116693), (5739, 69601), (9943, 40173), (13391, 29829)]