20778386

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 13695214

約数列:

[1, 2, 17, 34, 37, 74, 83, 166, 199, 398, 629, 1258, 1411, 2822, 3071, 3383, 6142, 6766, 7363, 14726, 16517, 33034, 52207, 104414, 125171, 250342, 280789, 561578, 611129, 1222258, 10389193, 20778386]

約数ペア:

[(1, 20778386), (2, 10389193), (17, 1222258), (34, 611129), (37, 561578), (74, 280789), (83, 250342), (166, 125171), (199, 104414), (398, 52207), (629, 33034), (1258, 16517), (1411, 14726), (2822, 7363), (3071, 6766), (3383, 6142)]