21069972

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{691}}^1$

素因数の和:730

約数の個数: 108

約数和(自身を含む): 67002208

約数和(自身を除く): 45932236

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 121, 126, 132, 154, 198, 231, 242, 252, 308, 363, 396, 462, 484, 691, 693, 726, 847, 924, 1089, 1382, 1386, 1452, 1694, 2073, 2178, 2541, 2764, 2772, 3388, 4146, 4356, 4837, 5082, 6219, 7601, 7623, 8292, 9674, 10164, 12438, 14511, 15202, 15246, 19348, 22803, 24876, 29022, 30404, 30492, 43533, 45606, 53207, 58044, 68409, 83611, 87066, 91212, 106414, 136818, 159621, 167222, 174132, 212828, 250833, 273636, 319242, 334444, 478863, 501666, 585277, 638484, 752499, 957726, 1003332, 1170554, 1504998, 1755831, 1915452, 2341108, 3009996, 3511662, 5267493, 7023324, 10534986, 21069972]

約数ペア:

[(1, 21069972), (2, 10534986), (3, 7023324), (4, 5267493), (6, 3511662), (7, 3009996), (9, 2341108), (11, 1915452), (12, 1755831), (14, 1504998), (18, 1170554), (21, 1003332), (22, 957726), (28, 752499), (33, 638484), (36, 585277), (42, 501666), (44, 478863), (63, 334444), (66, 319242), (77, 273636), (84, 250833), (99, 212828), (121, 174132), (126, 167222), (132, 159621), (154, 136818), (198, 106414), (231, 91212), (242, 87066), (252, 83611), (308, 68409), (363, 58044), (396, 53207), (462, 45606), (484, 43533), (691, 30492), (693, 30404), (726, 29022), (847, 24876), (924, 22803), (1089, 19348), (1382, 15246), (1386, 15202), (1452, 14511), (1694, 12438), (2073, 10164), (2178, 9674), (2541, 8292), (2764, 7623), (2772, 7601), (3388, 6219), (4146, 5082), (4356, 4837)]