19747770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{347}}^1$

素因数の和:635

約数の個数: 64

約数和(自身を含む): 54521856

約数和(自身を除く): 34774086

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 271, 347, 542, 694, 813, 1041, 1355, 1626, 1735, 1897, 2082, 2429, 2710, 3470, 3794, 4065, 4858, 5205, 5691, 7287, 8130, 9485, 10410, 11382, 12145, 14574, 18970, 24290, 28455, 36435, 56910, 72870, 94037, 188074, 282111, 470185, 564222, 658259, 940370, 1316518, 1410555, 1974777, 2821110, 3291295, 3949554, 6582590, 9873885, 19747770]

約数ペア:

[(1, 19747770), (2, 9873885), (3, 6582590), (5, 3949554), (6, 3291295), (7, 2821110), (10, 1974777), (14, 1410555), (15, 1316518), (21, 940370), (30, 658259), (35, 564222), (42, 470185), (70, 282111), (105, 188074), (210, 94037), (271, 72870), (347, 56910), (542, 36435), (694, 28455), (813, 24290), (1041, 18970), (1355, 14574), (1626, 12145), (1735, 11382), (1897, 10410), (2082, 9485), (2429, 8130), (2710, 7287), (3470, 5691), (3794, 5205), (4065, 4858)]