21867184

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{4129}}^1$

素因数の和:4468

約数の個数: 20

約数和(自身を含む): 42505960

約数和(自身を除く): 20638776

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 4129, 5296, 8258, 16516, 33032, 66064, 1366699, 2733398, 5466796, 10933592, 21867184]

約数ペア:

[(1, 21867184), (2, 10933592), (4, 5466796), (8, 2733398), (16, 1366699), (331, 66064), (662, 33032), (1324, 16516), (2648, 8258), (4129, 5296)]