21000228158

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3118537}}^1$

素因数の和:3118596

約数の個数: 32

約数和(自身を含む): 39817493184

約数和(自身を除く): 18817265026

約数列:

[1, 2, 7, 13, 14, 26, 37, 74, 91, 182, 259, 481, 518, 962, 3367, 6734, 3118537, 6237074, 21829759, 40540981, 43659518, 81081962, 115385869, 230771738, 283786867, 567573734, 807701083, 1500016297, 1615402166, 3000032594, 10500114079, 21000228158]

約数ペア:

[(1, 21000228158), (2, 10500114079), (7, 3000032594), (13, 1615402166), (14, 1500016297), (26, 807701083), (37, 567573734), (74, 283786867), (91, 230771738), (182, 115385869), (259, 81081962), (481, 43659518), (518, 40540981), (962, 21829759), (3367, 6237074), (6734, 3118537)]