20686886

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{1171}}^1$

素因数の和:1268

約数の個数: 24

約数和(自身を含む): 34604472

約数和(自身を除く): 13917586

約数列:

[1, 2, 11, 22, 73, 121, 146, 242, 803, 1171, 1606, 2342, 8833, 12881, 17666, 25762, 85483, 141691, 170966, 283382, 940313, 1880626, 10343443, 20686886]

約数ペア:

[(1, 20686886), (2, 10343443), (11, 1880626), (22, 940313), (73, 283382), (121, 170966), (146, 141691), (242, 85483), (803, 25762), (1171, 17666), (1606, 12881), (2342, 8833)]