20808515538

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{907}}^1\times {\mathrm{29641}}^1$

素因数の和:30599

約数の個数: 48

約数和(自身を含む): 46186030176

約数和(自身を除く): 25377514638

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 907, 1814, 2721, 5442, 8163, 16326, 29641, 39001, 59282, 78002, 88923, 117003, 177846, 234006, 266769, 351009, 533538, 702018, 1274563, 2549126, 3823689, 7647378, 11471067, 22942134, 26884387, 53768774, 80653161, 161306322, 241959483, 483918966, 1156028641, 2312057282, 3468085923, 6936171846, 10404257769, 20808515538]

約数ペア:

[(1, 20808515538), (2, 10404257769), (3, 6936171846), (6, 3468085923), (9, 2312057282), (18, 1156028641), (43, 483918966), (86, 241959483), (129, 161306322), (258, 80653161), (387, 53768774), (774, 26884387), (907, 22942134), (1814, 11471067), (2721, 7647378), (5442, 3823689), (8163, 2549126), (16326, 1274563), (29641, 702018), (39001, 533538), (59282, 351009), (78002, 266769), (88923, 234006), (117003, 177846)]