21907028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{38299}}^1$

素因数の和:38327

約数の個数: 24

約数和(自身を含む): 45040800

約数和(自身を除く): 23133772

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 38299, 76598, 153196, 421289, 497887, 842578, 995774, 1685156, 1991548, 5476757, 10953514, 21907028]

約数ペア:

[(1, 21907028), (2, 10953514), (4, 5476757), (11, 1991548), (13, 1685156), (22, 995774), (26, 842578), (44, 497887), (52, 421289), (143, 153196), (286, 76598), (572, 38299)]