15213765

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{2957}}^1$

素因数の和:2986

約数の個数: 32

約数和(自身を含む): 28396800

約数和(自身を除く): 13183035

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 2957, 5145, 8871, 14785, 20699, 44355, 62097, 103495, 144893, 310485, 434679, 724465, 1014251, 2173395, 3042753, 5071255, 15213765]

約数ペア:

[(1, 15213765), (3, 5071255), (5, 3042753), (7, 2173395), (15, 1014251), (21, 724465), (35, 434679), (49, 310485), (105, 144893), (147, 103495), (245, 62097), (343, 44355), (735, 20699), (1029, 14785), (1715, 8871), (2957, 5145)]