21659330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1223}}^1$

素因数の和:1271

約数の個数: 64

約数和(自身を含む): 50761728

約数和(自身を除く): 29102398

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 55, 70, 77, 110, 115, 154, 161, 230, 253, 322, 385, 506, 770, 805, 1223, 1265, 1610, 1771, 2446, 2530, 3542, 6115, 8561, 8855, 12230, 13453, 17122, 17710, 26906, 28129, 42805, 56258, 67265, 85610, 94171, 134530, 140645, 188342, 196903, 281290, 309419, 393806, 470855, 618838, 941710, 984515, 1547095, 1969030, 2165933, 3094190, 4331866, 10829665, 21659330]

約数ペア:

[(1, 21659330), (2, 10829665), (5, 4331866), (7, 3094190), (10, 2165933), (11, 1969030), (14, 1547095), (22, 984515), (23, 941710), (35, 618838), (46, 470855), (55, 393806), (70, 309419), (77, 281290), (110, 196903), (115, 188342), (154, 140645), (161, 134530), (230, 94171), (253, 85610), (322, 67265), (385, 56258), (506, 42805), (770, 28129), (805, 26906), (1223, 17710), (1265, 17122), (1610, 13453), (1771, 12230), (2446, 8855), (2530, 8561), (3542, 6115)]