20955180402

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{391057}}^1$

素因数の和:391307

約数の個数: 48

約数和(自身を含む): 49109063640

約数和(自身を除く): 28153883238

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 229, 234, 458, 687, 1374, 2061, 2977, 4122, 5954, 8931, 17862, 26793, 53586, 391057, 782114, 1173171, 2346342, 3519513, 5083741, 7039026, 10167482, 15251223, 30502446, 45753669, 89552053, 91507338, 179104106, 268656159, 537312318, 805968477, 1164176689, 1611936954, 2328353378, 3492530067, 6985060134, 10477590201, 20955180402]

約数ペア:

[(1, 20955180402), (2, 10477590201), (3, 6985060134), (6, 3492530067), (9, 2328353378), (13, 1611936954), (18, 1164176689), (26, 805968477), (39, 537312318), (78, 268656159), (117, 179104106), (229, 91507338), (234, 89552053), (458, 45753669), (687, 30502446), (1374, 15251223), (2061, 10167482), (2977, 7039026), (4122, 5083741), (5954, 3519513), (8931, 2346342), (17862, 1173171), (26793, 782114), (53586, 391057)]