21547250

素因数分解:

$2^1\times 5^3\times {\mathrm{79}}^1\times {\mathrm{1091}}^1$

素因数の和:1187

約数の個数: 32

約数和(自身を含む): 40884480

約数和(自身を除く): 19337230

約数列:

[1, 2, 5, 10, 25, 50, 79, 125, 158, 250, 395, 790, 1091, 1975, 2182, 3950, 5455, 9875, 10910, 19750, 27275, 54550, 86189, 136375, 172378, 272750, 430945, 861890, 2154725, 4309450, 10773625, 21547250]

約数ペア:

[(1, 21547250), (2, 10773625), (5, 4309450), (10, 2154725), (25, 861890), (50, 430945), (79, 272750), (125, 172378), (158, 136375), (250, 86189), (395, 54550), (790, 27275), (1091, 19750), (1975, 10910), (2182, 9875), (3950, 5455)]