20873314

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1$

素因数の和:128

約数の個数: 72

約数和(自身を含む): 42837552

約数和(自身を除く): 21964238

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 49, 67, 77, 98, 119, 134, 154, 187, 238, 289, 374, 469, 539, 578, 737, 833, 938, 1078, 1139, 1309, 1474, 1666, 2023, 2278, 2618, 3179, 3283, 4046, 5159, 6358, 6566, 7973, 9163, 10318, 12529, 14161, 15946, 18326, 19363, 22253, 25058, 28322, 36113, 38726, 44506, 55811, 72226, 87703, 111622, 135541, 155771, 175406, 212993, 271082, 311542, 425986, 613921, 948787, 1227842, 1490951, 1897574, 2981902, 10436657, 20873314]

約数ペア:

[(1, 20873314), (2, 10436657), (7, 2981902), (11, 1897574), (14, 1490951), (17, 1227842), (22, 948787), (34, 613921), (49, 425986), (67, 311542), (77, 271082), (98, 212993), (119, 175406), (134, 155771), (154, 135541), (187, 111622), (238, 87703), (289, 72226), (374, 55811), (469, 44506), (539, 38726), (578, 36113), (737, 28322), (833, 25058), (938, 22253), (1078, 19363), (1139, 18326), (1309, 15946), (1474, 14161), (1666, 12529), (2023, 10318), (2278, 9163), (2618, 7973), (3179, 6566), (3283, 6358), (4046, 5159)]