1289771886

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{16535537}}^1$

素因数の和:16535555

約数の個数: 16

約数和(自身を含む): 2777970384

約数和(自身を除く): 1488198498

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 16535537, 33071074, 49606611, 99213222, 214961981, 429923962, 644885943, 1289771886]

約数ペア:

[(1, 1289771886), (2, 644885943), (3, 429923962), (6, 214961981), (13, 99213222), (26, 49606611), (39, 33071074), (78, 16535537)]