64827321

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 96284160

約数和(自身を除く): 31456839

約数列:

[1, 3, 13, 39, 53, 79, 159, 237, 397, 689, 1027, 1191, 2067, 3081, 4187, 5161, 12561, 15483, 21041, 31363, 54431, 63123, 94089, 163293, 273533, 407719, 820599, 1223157, 1662239, 4986717, 21609107, 64827321]

約数ペア:

[(1, 64827321), (3, 21609107), (13, 4986717), (39, 1662239), (53, 1223157), (79, 820599), (159, 407719), (237, 273533), (397, 163293), (689, 94089), (1027, 63123), (1191, 54431), (2067, 31363), (3081, 21041), (4187, 15483), (5161, 12561)]