19718704

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30059}}^1$

素因数の和:30108

約数の個数: 20

約数和(自身を含む): 39138120

約数和(自身を除く): 19419416

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30059, 60118, 120236, 240472, 480944, 1232419, 2464838, 4929676, 9859352, 19718704]

約数ペア:

[(1, 19718704), (2, 9859352), (4, 4929676), (8, 2464838), (16, 1232419), (41, 480944), (82, 240472), (164, 120236), (328, 60118), (656, 30059)]