20893210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{929}}^1$

素因数の和:1122

約数の個数: 32

約数和(自身を含む): 40778640

約数和(自身を除く): 19885430

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 173, 346, 865, 929, 1730, 1858, 2249, 4498, 4645, 9290, 11245, 12077, 22490, 24154, 60385, 120770, 160717, 321434, 803585, 1607170, 2089321, 4178642, 10446605, 20893210]

約数ペア:

[(1, 20893210), (2, 10446605), (5, 4178642), (10, 2089321), (13, 1607170), (26, 803585), (65, 321434), (130, 160717), (173, 120770), (346, 60385), (865, 24154), (929, 22490), (1730, 12077), (1858, 11245), (2249, 9290), (4498, 4645)]