19997266471

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{701}}^1\times {\mathrm{2357}}^1$

素因数の和:3104

約数の個数: 48

約数和(自身を含む): 26418843360

約数和(自身を除く): 6421576889

約数列:

[1, 7, 13, 19, 49, 91, 133, 247, 637, 701, 931, 1729, 2357, 4907, 9113, 12103, 13319, 16499, 30641, 34349, 44783, 63791, 93233, 115493, 173147, 214487, 313481, 446537, 582179, 652631, 1212029, 1501409, 1652257, 2194367, 4075253, 8484203, 11565799, 21479341, 28526771, 31392883, 80960593, 150355387, 219750181, 408107479, 1052487709, 1538251267, 2856752353, 19997266471]

約数ペア:

[(1, 19997266471), (7, 2856752353), (13, 1538251267), (19, 1052487709), (49, 408107479), (91, 219750181), (133, 150355387), (247, 80960593), (637, 31392883), (701, 28526771), (931, 21479341), (1729, 11565799), (2357, 8484203), (4907, 4075253), (9113, 2194367), (12103, 1652257), (13319, 1501409), (16499, 1212029), (30641, 652631), (34349, 582179), (44783, 446537), (63791, 313481), (93233, 214487), (115493, 173147)]