20017958

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^2\times {\mathrm{197}}^1$

素因数の和:316

約数の個数: 24

約数和(自身を含む): 32175792

約数和(自身を除く): 12157834

約数列:

[1, 2, 23, 46, 47, 94, 197, 394, 1081, 2162, 2209, 4418, 4531, 9062, 9259, 18518, 50807, 101614, 212957, 425914, 435173, 870346, 10008979, 20017958]

約数ペア:

[(1, 20017958), (2, 10008979), (23, 870346), (46, 435173), (47, 425914), (94, 212957), (197, 101614), (394, 50807), (1081, 18518), (2162, 9259), (2209, 9062), (4418, 4531)]