21018470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1753}}^1$

素因数の和:1880

約数の個数: 32

約数和(自身を含む): 41675040

約数和(自身を除く): 20656570

約数列:

[1, 2, 5, 10, 11, 22, 55, 109, 110, 218, 545, 1090, 1199, 1753, 2398, 3506, 5995, 8765, 11990, 17530, 19283, 38566, 96415, 191077, 192830, 382154, 955385, 1910770, 2101847, 4203694, 10509235, 21018470]

約数ペア:

[(1, 21018470), (2, 10509235), (5, 4203694), (10, 2101847), (11, 1910770), (22, 955385), (55, 382154), (109, 192830), (110, 191077), (218, 96415), (545, 38566), (1090, 19283), (1199, 17530), (1753, 11990), (2398, 8765), (3506, 5995)]