18355491

素因数分解:

$3^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1$

素因数の和:148

約数の個数: 64

約数和(自身を含む): 34636800

約数和(自身を除く): 16281309

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 109, 189, 231, 243, 297, 327, 567, 693, 729, 763, 891, 981, 1199, 1701, 2079, 2187, 2289, 2673, 2943, 3597, 5103, 6237, 6867, 8019, 8393, 8829, 10791, 15309, 18711, 20601, 24057, 25179, 26487, 32373, 56133, 61803, 75537, 79461, 97119, 168399, 185409, 226611, 238383, 291357, 556227, 679833, 874071, 1668681, 2039499, 2622213, 6118497, 18355491]

約数ペア:

[(1, 18355491), (3, 6118497), (7, 2622213), (9, 2039499), (11, 1668681), (21, 874071), (27, 679833), (33, 556227), (63, 291357), (77, 238383), (81, 226611), (99, 185409), (109, 168399), (189, 97119), (231, 79461), (243, 75537), (297, 61803), (327, 56133), (567, 32373), (693, 26487), (729, 25179), (763, 24057), (891, 20601), (981, 18711), (1199, 15309), (1701, 10791), (2079, 8829), (2187, 8393), (2289, 8019), (2673, 6867), (2943, 6237), (3597, 5103)]