18674418

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 44782848

約数和(自身を除く): 26108430

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 61, 74, 111, 122, 183, 197, 222, 259, 366, 394, 427, 518, 591, 777, 854, 1182, 1281, 1379, 1554, 2257, 2562, 2758, 4137, 4514, 6771, 7289, 8274, 12017, 13542, 14578, 15799, 21867, 24034, 31598, 36051, 43734, 47397, 51023, 72102, 84119, 94794, 102046, 153069, 168238, 252357, 306138, 444629, 504714, 889258, 1333887, 2667774, 3112403, 6224806, 9337209, 18674418]

約数ペア:

[(1, 18674418), (2, 9337209), (3, 6224806), (6, 3112403), (7, 2667774), (14, 1333887), (21, 889258), (37, 504714), (42, 444629), (61, 306138), (74, 252357), (111, 168238), (122, 153069), (183, 102046), (197, 94794), (222, 84119), (259, 72102), (366, 51023), (394, 47397), (427, 43734), (518, 36051), (591, 31598), (777, 24034), (854, 21867), (1182, 15799), (1281, 14578), (1379, 13542), (1554, 12017), (2257, 8274), (2562, 7289), (2758, 6771), (4137, 4514)]