18654236

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{691}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 34702416

約数和(自身を除く): 16048180

約数列:

[1, 2, 4, 17, 34, 68, 397, 691, 794, 1382, 1588, 2764, 6749, 11747, 13498, 23494, 26996, 46988, 274327, 548654, 1097308, 4663559, 9327118, 18654236]

約数ペア:

[(1, 18654236), (2, 9327118), (4, 4663559), (17, 1097308), (34, 548654), (68, 274327), (397, 46988), (691, 26996), (794, 23494), (1382, 13498), (1588, 11747), (2764, 6749)]