20078793

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 36864000

約数和(自身を除く): 16785207

約数列:

[1, 3, 7, 9, 21, 23, 27, 31, 63, 69, 93, 149, 161, 189, 207, 217, 279, 447, 483, 621, 651, 713, 837, 1043, 1341, 1449, 1953, 2139, 3129, 3427, 4023, 4347, 4619, 4991, 5859, 6417, 9387, 10281, 13857, 14973, 19251, 23989, 28161, 30843, 32333, 41571, 44919, 71967, 92529, 96999, 106237, 124713, 134757, 215901, 290997, 318711, 647703, 743659, 872991, 956133, 2230977, 2868399, 6692931, 20078793]

約数ペア:

[(1, 20078793), (3, 6692931), (7, 2868399), (9, 2230977), (21, 956133), (23, 872991), (27, 743659), (31, 647703), (63, 318711), (69, 290997), (93, 215901), (149, 134757), (161, 124713), (189, 106237), (207, 96999), (217, 92529), (279, 71967), (447, 44919), (483, 41571), (621, 32333), (651, 30843), (713, 28161), (837, 23989), (1043, 19251), (1341, 14973), (1449, 13857), (1953, 10281), (2139, 9387), (3129, 6417), (3427, 5859), (4023, 4991), (4347, 4619)]