21178049282

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{331}}^1\times {\mathrm{379}}^1$

素因数の和:919

約数の個数: 64

約数和(自身を含む): 35437839360

約数和(自身を除く): 14259790078

約数列:

[1, 2, 13, 26, 43, 86, 151, 302, 331, 379, 559, 662, 758, 1118, 1963, 3926, 4303, 4927, 6493, 8606, 9854, 12986, 14233, 16297, 28466, 32594, 49981, 57229, 84409, 99962, 114458, 125449, 168818, 185029, 211861, 250898, 370058, 423722, 649753, 743977, 1299506, 1487954, 1630837, 2149183, 2460847, 3261674, 4298366, 4921694, 5394307, 10788614, 18942799, 27939379, 31991011, 37885598, 55878758, 63982022, 70125991, 140251982, 246256387, 492512774, 814540357, 1629080714, 10589024641, 21178049282]

約数ペア:

[(1, 21178049282), (2, 10589024641), (13, 1629080714), (26, 814540357), (43, 492512774), (86, 246256387), (151, 140251982), (302, 70125991), (331, 63982022), (379, 55878758), (559, 37885598), (662, 31991011), (758, 27939379), (1118, 18942799), (1963, 10788614), (3926, 5394307), (4303, 4921694), (4927, 4298366), (6493, 3261674), (8606, 2460847), (9854, 2149183), (12986, 1630837), (14233, 1487954), (16297, 1299506), (28466, 743977), (32594, 649753), (49981, 423722), (57229, 370058), (84409, 250898), (99962, 211861), (114458, 185029), (125449, 168818)]