20819792

素因数分解:

$2^4\times 7^1\times {\mathrm{211}}^1\times {\mathrm{881}}^1$

素因数の和:1107

約数の個数: 40

約数和(自身を含む): 46372032

約数和(自身を除く): 25552240

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 211, 422, 844, 881, 1477, 1688, 1762, 2954, 3376, 3524, 5908, 6167, 7048, 11816, 12334, 14096, 23632, 24668, 49336, 98672, 185891, 371782, 743564, 1301237, 1487128, 2602474, 2974256, 5204948, 10409896, 20819792]

約数ペア:

[(1, 20819792), (2, 10409896), (4, 5204948), (7, 2974256), (8, 2602474), (14, 1487128), (16, 1301237), (28, 743564), (56, 371782), (112, 185891), (211, 98672), (422, 49336), (844, 24668), (881, 23632), (1477, 14096), (1688, 12334), (1762, 11816), (2954, 7048), (3376, 6167), (3524, 5908)]