21376745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1901}}^1$

素因数の和:2092

約数の個数: 16

約数和(自身を含む): 27799632

約数和(自身を除く): 6422887

約数列:

[1, 5, 13, 65, 173, 865, 1901, 2249, 9505, 11245, 24713, 123565, 328873, 1644365, 4275349, 21376745]

約数ペア:

[(1, 21376745), (5, 4275349), (13, 1644365), (65, 328873), (173, 123565), (865, 24713), (1901, 11245), (2249, 9505)]