21778995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{5059}}^1$

素因数の和:5115

約数の個数: 32

約数和(自身を含む): 40803840

約数和(自身を除く): 19024845

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 105, 123, 205, 287, 615, 861, 1435, 4305, 5059, 15177, 25295, 35413, 75885, 106239, 177065, 207419, 531195, 622257, 1037095, 1451933, 3111285, 4355799, 7259665, 21778995]

約数ペア:

[(1, 21778995), (3, 7259665), (5, 4355799), (7, 3111285), (15, 1451933), (21, 1037095), (35, 622257), (41, 531195), (105, 207419), (123, 177065), (205, 106239), (287, 75885), (615, 35413), (861, 25295), (1435, 15177), (4305, 5059)]