20541796366

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{81847}}^1$

素因数の和:82073

約数の個数: 48

約数和(自身を含む): 38796934176

約数和(自身を除く): 18255137810

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 197, 394, 637, 1274, 1379, 2561, 2758, 5122, 9653, 17927, 19306, 35854, 81847, 125489, 163694, 250978, 572929, 1064011, 1145858, 2128022, 4010503, 7448077, 8021006, 14896154, 16123859, 32247718, 52136539, 104273078, 112867013, 209610167, 225734026, 419220334, 790069091, 1467271169, 1580138182, 2934542338, 10270898183, 20541796366]

約数ペア:

[(1, 20541796366), (2, 10270898183), (7, 2934542338), (13, 1580138182), (14, 1467271169), (26, 790069091), (49, 419220334), (91, 225734026), (98, 209610167), (182, 112867013), (197, 104273078), (394, 52136539), (637, 32247718), (1274, 16123859), (1379, 14896154), (2561, 8021006), (2758, 7448077), (5122, 4010503), (9653, 2128022), (17927, 1145858), (19306, 1064011), (35854, 572929), (81847, 250978), (125489, 163694)]