18713786

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:463

約数の個数: 48

約数和(自身を含む): 36206856

約数和(自身を除く): 17493070

約数列:

[1, 2, 7, 13, 14, 26, 37, 49, 74, 91, 98, 182, 259, 397, 481, 518, 637, 794, 962, 1274, 1813, 2779, 3367, 3626, 5161, 5558, 6734, 10322, 14689, 19453, 23569, 29378, 36127, 38906, 47138, 72254, 102823, 190957, 205646, 252889, 381914, 505778, 719761, 1336699, 1439522, 2673398, 9356893, 18713786]

約数ペア:

[(1, 18713786), (2, 9356893), (7, 2673398), (13, 1439522), (14, 1336699), (26, 719761), (37, 505778), (49, 381914), (74, 252889), (91, 205646), (98, 190957), (182, 102823), (259, 72254), (397, 47138), (481, 38906), (518, 36127), (637, 29378), (794, 23569), (962, 19453), (1274, 14689), (1813, 10322), (2779, 6734), (3367, 5558), (3626, 5161)]