20734686

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{89}}^1$

素因数の和:190

約数の個数: 72

約数和(自身を含む): 53155440

約数和(自身を除く): 32420754

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 63, 86, 89, 126, 129, 178, 258, 267, 301, 387, 534, 602, 623, 774, 801, 903, 1246, 1602, 1806, 1849, 1869, 2709, 3698, 3738, 3827, 5418, 5547, 5607, 7654, 11094, 11214, 11481, 12943, 16641, 22962, 25886, 26789, 33282, 34443, 38829, 53578, 68886, 77658, 80367, 116487, 160734, 164561, 232974, 241101, 329122, 482202, 493683, 987366, 1151927, 1481049, 2303854, 2962098, 3455781, 6911562, 10367343, 20734686]

約数ペア:

[(1, 20734686), (2, 10367343), (3, 6911562), (6, 3455781), (7, 2962098), (9, 2303854), (14, 1481049), (18, 1151927), (21, 987366), (42, 493683), (43, 482202), (63, 329122), (86, 241101), (89, 232974), (126, 164561), (129, 160734), (178, 116487), (258, 80367), (267, 77658), (301, 68886), (387, 53578), (534, 38829), (602, 34443), (623, 33282), (774, 26789), (801, 25886), (903, 22962), (1246, 16641), (1602, 12943), (1806, 11481), (1849, 11214), (1869, 11094), (2709, 7654), (3698, 5607), (3738, 5547), (3827, 5418)]