31391154

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{349}}^1$

素因数の和:639

約数の個数: 48

約数和(自身を含む): 72072000

約数和(自身を除く): 40680846

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 263, 342, 349, 526, 698, 789, 1047, 1578, 2094, 2367, 3141, 4734, 4997, 6282, 6631, 9994, 13262, 14991, 19893, 29982, 39786, 44973, 59679, 89946, 91787, 119358, 183574, 275361, 550722, 826083, 1652166, 1743953, 3487906, 5231859, 10463718, 15695577, 31391154]

約数ペア:

[(1, 31391154), (2, 15695577), (3, 10463718), (6, 5231859), (9, 3487906), (18, 1743953), (19, 1652166), (38, 826083), (57, 550722), (114, 275361), (171, 183574), (263, 119358), (342, 91787), (349, 89946), (526, 59679), (698, 44973), (789, 39786), (1047, 29982), (1578, 19893), (2094, 14991), (2367, 13262), (3141, 9994), (4734, 6631), (4997, 6282)]