20908758

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1481}}^1$

素因数の和:1680

約数の個数: 32

約数和(自身を含む): 45313632

約数和(自身を除く): 24404874

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 181, 362, 543, 1086, 1481, 2353, 2962, 4443, 4706, 7059, 8886, 14118, 19253, 38506, 57759, 115518, 268061, 536122, 804183, 1608366, 3484793, 6969586, 10454379, 20908758]

約数ペア:

[(1, 20908758), (2, 10454379), (3, 6969586), (6, 3484793), (13, 1608366), (26, 804183), (39, 536122), (78, 268061), (181, 115518), (362, 57759), (543, 38506), (1086, 19253), (1481, 14118), (2353, 8886), (2962, 7059), (4443, 4706)]