21340334764

素因数分解:

$2^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{661}}^1\times {\mathrm{1297}}^1$

素因数の和:2103

約数の個数: 72

約数和(自身を含む): 43884943872

約数和(自身を除く): 22544609108

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 127, 196, 254, 508, 661, 889, 1297, 1322, 1778, 2594, 2644, 3556, 4627, 5188, 6223, 9079, 9254, 12446, 18158, 18508, 24892, 32389, 36316, 63553, 64778, 83947, 127106, 129556, 164719, 167894, 254212, 329438, 335788, 587629, 658876, 857317, 1153033, 1175258, 1714634, 2306066, 2350516, 3429268, 4113403, 4612132, 6001219, 8071231, 8226806, 12002438, 16142462, 16453612, 24004876, 32284924, 42008533, 84017066, 108879259, 168034132, 217758518, 435517036, 762154813, 1524309626, 3048619252, 5335083691, 10670167382, 21340334764]

約数ペア:

[(1, 21340334764), (2, 10670167382), (4, 5335083691), (7, 3048619252), (14, 1524309626), (28, 762154813), (49, 435517036), (98, 217758518), (127, 168034132), (196, 108879259), (254, 84017066), (508, 42008533), (661, 32284924), (889, 24004876), (1297, 16453612), (1322, 16142462), (1778, 12002438), (2594, 8226806), (2644, 8071231), (3556, 6001219), (4627, 4612132), (5188, 4113403), (6223, 3429268), (9079, 2350516), (9254, 2306066), (12446, 1714634), (18158, 1175258), (18508, 1153033), (24892, 857317), (32389, 658876), (36316, 587629), (63553, 335788), (64778, 329438), (83947, 254212), (127106, 167894), (129556, 164719)]