21865316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{7417}}^1$

素因数の和:7499

約数の個数: 24

約数和(自身を含む): 42371616

約数和(自身を除く): 20506300

約数列:

[1, 2, 4, 11, 22, 44, 67, 134, 268, 737, 1474, 2948, 7417, 14834, 29668, 81587, 163174, 326348, 496939, 993878, 1987756, 5466329, 10932658, 21865316]

約数ペア:

[(1, 21865316), (2, 10932658), (4, 5466329), (11, 1987756), (22, 993878), (44, 496939), (67, 326348), (134, 163174), (268, 81587), (737, 29668), (1474, 14834), (2948, 7417)]