18517668

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 48944448

約数和(自身を除く): 30426780

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 169, 276, 299, 338, 397, 507, 598, 676, 794, 897, 1014, 1191, 1196, 1588, 1794, 2028, 2382, 3588, 3887, 4764, 5161, 7774, 9131, 10322, 11661, 15483, 15548, 18262, 20644, 23322, 27393, 30966, 36524, 46644, 54786, 61932, 67093, 109572, 118703, 134186, 201279, 237406, 268372, 356109, 402558, 474812, 712218, 805116, 1424436, 1543139, 3086278, 4629417, 6172556, 9258834, 18517668]

約数ペア:

[(1, 18517668), (2, 9258834), (3, 6172556), (4, 4629417), (6, 3086278), (12, 1543139), (13, 1424436), (23, 805116), (26, 712218), (39, 474812), (46, 402558), (52, 356109), (69, 268372), (78, 237406), (92, 201279), (138, 134186), (156, 118703), (169, 109572), (276, 67093), (299, 61932), (338, 54786), (397, 46644), (507, 36524), (598, 30966), (676, 27393), (794, 23322), (897, 20644), (1014, 18262), (1191, 15548), (1196, 15483), (1588, 11661), (1794, 10322), (2028, 9131), (2382, 7774), (3588, 5161), (3887, 4764)]