20210281364

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{271}}^1\times {\mathrm{971}}^1$

素因数の和:1477

約数の個数: 96

約数和(自身を含む): 43942735872

約数和(自身を除く): 23732454508

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 211, 271, 364, 422, 542, 844, 971, 1084, 1477, 1897, 1942, 2743, 2954, 3523, 3794, 3884, 5486, 5908, 6797, 7046, 7588, 10972, 12623, 13594, 14092, 19201, 24661, 25246, 27188, 38402, 49322, 50492, 57181, 76804, 88361, 98644, 114362, 176722, 204881, 228724, 263141, 353444, 400267, 409762, 526282, 743353, 800534, 819524, 1052564, 1434167, 1486706, 1601068, 1841987, 2663453, 2868334, 2973412, 3420833, 3683974, 5203471, 5326906, 5736668, 6841666, 7367948, 10406942, 10653812, 13683332, 18644171, 20813884, 23945831, 37288342, 47891662, 55522751, 74576684, 95783324, 111045502, 222091004, 388659257, 721795763, 777318514, 1443591526, 1554637028, 2887183052, 5052570341, 10105140682, 20210281364]

約数ペア:

[(1, 20210281364), (2, 10105140682), (4, 5052570341), (7, 2887183052), (13, 1554637028), (14, 1443591526), (26, 777318514), (28, 721795763), (52, 388659257), (91, 222091004), (182, 111045502), (211, 95783324), (271, 74576684), (364, 55522751), (422, 47891662), (542, 37288342), (844, 23945831), (971, 20813884), (1084, 18644171), (1477, 13683332), (1897, 10653812), (1942, 10406942), (2743, 7367948), (2954, 6841666), (3523, 5736668), (3794, 5326906), (3884, 5203471), (5486, 3683974), (5908, 3420833), (6797, 2973412), (7046, 2868334), (7588, 2663453), (10972, 1841987), (12623, 1601068), (13594, 1486706), (14092, 1434167), (19201, 1052564), (24661, 819524), (25246, 800534), (27188, 743353), (38402, 526282), (49322, 409762), (50492, 400267), (57181, 353444), (76804, 263141), (88361, 228724), (98644, 204881), (114362, 176722)]