20627958

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:517

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 27756042

約数列:

[1, 2, 3, 6, 13, 19, 26, 31, 38, 39, 57, 62, 78, 93, 114, 186, 247, 403, 449, 494, 589, 741, 806, 898, 1178, 1209, 1347, 1482, 1767, 2418, 2694, 3534, 5837, 7657, 8531, 11674, 13919, 15314, 17062, 17511, 22971, 25593, 27838, 35022, 41757, 45942, 51186, 83514, 110903, 180947, 221806, 264461, 332709, 361894, 528922, 542841, 665418, 793383, 1085682, 1586766, 3437993, 6875986, 10313979, 20627958]

約数ペア:

[(1, 20627958), (2, 10313979), (3, 6875986), (6, 3437993), (13, 1586766), (19, 1085682), (26, 793383), (31, 665418), (38, 542841), (39, 528922), (57, 361894), (62, 332709), (78, 264461), (93, 221806), (114, 180947), (186, 110903), (247, 83514), (403, 51186), (449, 45942), (494, 41757), (589, 35022), (741, 27838), (806, 25593), (898, 22971), (1178, 17511), (1209, 17062), (1347, 15314), (1482, 13919), (1767, 11674), (2418, 8531), (2694, 7657), (3534, 5837)]