20121571314

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1686071}}^1$

素因数の和:1686112

約数の個数: 64

約数和(自身を含む): 50986817280

約数和(自身を除く): 30865245966

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 102, 117, 153, 221, 234, 306, 351, 442, 459, 663, 702, 918, 1326, 1989, 3978, 5967, 11934, 1686071, 3372142, 5058213, 10116426, 15174639, 21918923, 28663207, 30349278, 43837846, 45523917, 57326414, 65756769, 85989621, 91047834, 131513538, 171979242, 197270307, 257968863, 372621691, 394540614, 515937726, 591810921, 745243382, 773906589, 1117865073, 1183621842, 1547813178, 2235730146, 3353595219, 6707190438, 10060785657, 20121571314]

約数ペア:

[(1, 20121571314), (2, 10060785657), (3, 6707190438), (6, 3353595219), (9, 2235730146), (13, 1547813178), (17, 1183621842), (18, 1117865073), (26, 773906589), (27, 745243382), (34, 591810921), (39, 515937726), (51, 394540614), (54, 372621691), (78, 257968863), (102, 197270307), (117, 171979242), (153, 131513538), (221, 91047834), (234, 85989621), (306, 65756769), (351, 57326414), (442, 45523917), (459, 43837846), (663, 30349278), (702, 28663207), (918, 21918923), (1326, 15174639), (1989, 10116426), (3978, 5058213), (5967, 3372142), (11934, 1686071)]