19745805

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 32796288

約数和(自身を除く): 13050483

約数列:

[1, 3, 5, 15, 41, 97, 123, 205, 291, 331, 485, 615, 993, 1455, 1655, 3977, 4965, 11931, 13571, 19885, 32107, 40713, 59655, 67855, 96321, 160535, 203565, 481605, 1316387, 3949161, 6581935, 19745805]

約数ペア:

[(1, 19745805), (3, 6581935), (5, 3949161), (15, 1316387), (41, 481605), (97, 203565), (123, 160535), (205, 96321), (291, 67855), (331, 59655), (485, 40713), (615, 32107), (993, 19885), (1455, 13571), (1655, 11931), (3977, 4965)]