20989294

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{359}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13847186

約数列:

[1, 2, 23, 31, 41, 46, 62, 82, 359, 713, 718, 943, 1271, 1426, 1886, 2542, 8257, 11129, 14719, 16514, 22258, 29233, 29438, 58466, 255967, 338537, 456289, 511934, 677074, 912578, 10494647, 20989294]

約数ペア:

[(1, 20989294), (2, 10494647), (23, 912578), (31, 677074), (41, 511934), (46, 456289), (62, 338537), (82, 255967), (359, 58466), (713, 29438), (718, 29233), (943, 22258), (1271, 16514), (1426, 14719), (1886, 11129), (2542, 8257)]