21540472

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{503}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 41640480

約数和(自身を除く): 20100008

約数列:

[1, 2, 4, 8, 53, 101, 106, 202, 212, 404, 424, 503, 808, 1006, 2012, 4024, 5353, 10706, 21412, 26659, 42824, 50803, 53318, 101606, 106636, 203212, 213272, 406424, 2692559, 5385118, 10770236, 21540472]

約数ペア:

[(1, 21540472), (2, 10770236), (4, 5385118), (8, 2692559), (53, 406424), (101, 213272), (106, 203212), (202, 106636), (212, 101606), (404, 53318), (424, 50803), (503, 42824), (808, 26659), (1006, 21412), (2012, 10706), (4024, 5353)]