19776225

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{271}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 37775360

約数和(自身を除く): 17999135

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 139, 175, 271, 417, 525, 695, 813, 973, 1355, 1897, 2085, 2919, 3475, 4065, 4865, 5691, 6775, 9485, 10425, 14595, 20325, 24325, 28455, 37669, 47425, 72975, 113007, 142275, 188345, 263683, 565035, 791049, 941725, 1318415, 2825175, 3955245, 6592075, 19776225]

約数ペア:

[(1, 19776225), (3, 6592075), (5, 3955245), (7, 2825175), (15, 1318415), (21, 941725), (25, 791049), (35, 565035), (75, 263683), (105, 188345), (139, 142275), (175, 113007), (271, 72975), (417, 47425), (525, 37669), (695, 28455), (813, 24325), (973, 20325), (1355, 14595), (1897, 10425), (2085, 9485), (2919, 6775), (3475, 5691), (4065, 4865)]