20671036666

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{509}}^2$

素因数の和:1207

約数の個数: 48

約数和(自身を含む): 36633481920

約数和(自身を除く): 15962445254

約数列:

[1, 2, 7, 14, 41, 82, 139, 278, 287, 509, 574, 973, 1018, 1946, 3563, 5699, 7126, 11398, 20869, 39893, 41738, 70751, 79786, 141502, 146083, 259081, 292166, 495257, 518162, 990514, 1813567, 2900791, 3627134, 5801582, 10622321, 20305537, 21244642, 36012259, 40611074, 72024518, 74356247, 148712494, 252085813, 504171626, 1476502619, 2953005238, 10335518333, 20671036666]

約数ペア:

[(1, 20671036666), (2, 10335518333), (7, 2953005238), (14, 1476502619), (41, 504171626), (82, 252085813), (139, 148712494), (278, 74356247), (287, 72024518), (509, 40611074), (574, 36012259), (973, 21244642), (1018, 20305537), (1946, 10622321), (3563, 5801582), (5699, 3627134), (7126, 2900791), (11398, 1813567), (20869, 990514), (39893, 518162), (41738, 495257), (70751, 292166), (79786, 259081), (141502, 146083)]