18870297963

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1429}}^1\times {\mathrm{21061}}^1$

素因数の和:22523

約数の個数: 32

約数和(自身を含む): 28913913600

約数和(自身を除く): 10043615637

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 1429, 4287, 15719, 21061, 27151, 47157, 63183, 81453, 231671, 298661, 400159, 695013, 895983, 1200477, 4401749, 13205247, 30096169, 90288507, 331057859, 571827211, 993173577, 1715481633, 6290099321, 18870297963]

約数ペア:

[(1, 18870297963), (3, 6290099321), (11, 1715481633), (19, 993173577), (33, 571827211), (57, 331057859), (209, 90288507), (627, 30096169), (1429, 13205247), (4287, 4401749), (15719, 1200477), (21061, 895983), (27151, 695013), (47157, 400159), (63183, 298661), (81453, 231671)]