19958337

素因数分解:

$3^2\times 7^2\times {\mathrm{167}}^1\times {\mathrm{271}}^1$

素因数の和:458

約数の個数: 36

約数和(自身を含む): 33860736

約数和(自身を除く): 13902399

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 167, 271, 441, 501, 813, 1169, 1503, 1897, 2439, 3507, 5691, 8183, 10521, 13279, 17073, 24549, 39837, 45257, 73647, 119511, 135771, 316799, 407313, 950397, 2217593, 2851191, 6652779, 19958337]

約数ペア:

[(1, 19958337), (3, 6652779), (7, 2851191), (9, 2217593), (21, 950397), (49, 407313), (63, 316799), (147, 135771), (167, 119511), (271, 73647), (441, 45257), (501, 39837), (813, 24549), (1169, 17073), (1503, 13279), (1897, 10521), (2439, 8183), (3507, 5691)]