21078424

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{20113}}^1$

素因数の和:20250

約数の個数: 16

約数和(自身を含む): 39825720

約数和(自身を除く): 18747296

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 20113, 40226, 80452, 160904, 2634803, 5269606, 10539212, 21078424]

約数ペア:

[(1, 21078424), (2, 10539212), (4, 5269606), (8, 2634803), (131, 160904), (262, 80452), (524, 40226), (1048, 20113)]