31381686

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{947}}^1$

素因数の和:1225

約数の個数: 48

約数和(自身を含む): 78084864

約数和(自身を除く): 46703178

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 263, 526, 789, 947, 1578, 1841, 1894, 2367, 2841, 3682, 4734, 5523, 5682, 6629, 8523, 11046, 13258, 16569, 17046, 19887, 33138, 39774, 59661, 119322, 249061, 498122, 747183, 1494366, 1743427, 2241549, 3486854, 4483098, 5230281, 10460562, 15690843, 31381686]

約数ペア:

[(1, 31381686), (2, 15690843), (3, 10460562), (6, 5230281), (7, 4483098), (9, 3486854), (14, 2241549), (18, 1743427), (21, 1494366), (42, 747183), (63, 498122), (126, 249061), (263, 119322), (526, 59661), (789, 39774), (947, 33138), (1578, 19887), (1841, 17046), (1894, 16569), (2367, 13258), (2841, 11046), (3682, 8523), (4734, 6629), (5523, 5682)]