1989993018

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1163}}^1\times {\mathrm{21937}}^1$

素因数の和:23118

約数の個数: 32

約数和(自身を含む): 4290019776

約数和(自身を除く): 2300026758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 1163, 2326, 3489, 6978, 15119, 21937, 30238, 43874, 45357, 65811, 90714, 131622, 285181, 570362, 855543, 1711086, 25512731, 51025462, 76538193, 153076386, 331665503, 663331006, 994996509, 1989993018]

約数ペア:

[(1, 1989993018), (2, 994996509), (3, 663331006), (6, 331665503), (13, 153076386), (26, 76538193), (39, 51025462), (78, 25512731), (1163, 1711086), (2326, 855543), (3489, 570362), (6978, 285181), (15119, 131622), (21937, 90714), (30238, 65811), (43874, 45357)]