15213705

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1279}}^1$

素因数の和:1361

約数の個数: 32

約数和(自身を含む): 26664960

約数和(自身を除く): 11451255

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 1279, 2379, 3837, 3965, 6395, 11895, 16627, 19185, 49881, 78019, 83135, 234057, 249405, 390095, 1014247, 1170285, 3042741, 5071235, 15213705]

約数ペア:

[(1, 15213705), (3, 5071235), (5, 3042741), (13, 1170285), (15, 1014247), (39, 390095), (61, 249405), (65, 234057), (183, 83135), (195, 78019), (305, 49881), (793, 19185), (915, 16627), (1279, 11895), (2379, 6395), (3837, 3965)]