21385364

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 51744000

約数和(自身を除く): 30358636

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 109, 143, 154, 182, 196, 218, 286, 308, 343, 364, 436, 539, 572, 637, 686, 763, 1001, 1078, 1199, 1274, 1372, 1417, 1526, 2002, 2156, 2398, 2548, 2834, 3052, 3773, 4004, 4459, 4796, 5341, 5668, 7007, 7546, 8393, 8918, 9919, 10682, 14014, 15092, 15587, 16786, 17836, 19838, 21364, 28028, 31174, 33572, 37387, 39676, 49049, 58751, 62348, 69433, 74774, 98098, 109109, 117502, 138866, 149548, 196196, 218218, 235004, 277732, 411257, 436436, 486031, 763763, 822514, 972062, 1527526, 1645028, 1944124, 3055052, 5346341, 10692682, 21385364]

約数ペア:

[(1, 21385364), (2, 10692682), (4, 5346341), (7, 3055052), (11, 1944124), (13, 1645028), (14, 1527526), (22, 972062), (26, 822514), (28, 763763), (44, 486031), (49, 436436), (52, 411257), (77, 277732), (91, 235004), (98, 218218), (109, 196196), (143, 149548), (154, 138866), (182, 117502), (196, 109109), (218, 98098), (286, 74774), (308, 69433), (343, 62348), (364, 58751), (436, 49049), (539, 39676), (572, 37387), (637, 33572), (686, 31174), (763, 28028), (1001, 21364), (1078, 19838), (1199, 17836), (1274, 16786), (1372, 15587), (1417, 15092), (1526, 14014), (2002, 10682), (2156, 9919), (2398, 8918), (2548, 8393), (2834, 7546), (3052, 7007), (3773, 5668), (4004, 5341), (4459, 4796)]