21072614444

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1301}}^1\times {\mathrm{3593}}^1$

素因数の和:4935

約数の個数: 72

約数和(自身を含む): 44809819488

約数和(自身を除く): 23737205044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 1301, 2254, 2602, 3593, 4508, 5204, 7186, 9107, 14372, 18214, 25151, 29923, 36428, 50302, 59846, 63749, 82639, 100604, 119692, 127498, 165278, 176057, 209461, 254996, 330556, 352114, 418922, 578473, 704228, 837844, 1156946, 1466227, 2313892, 2932454, 4049311, 4674493, 5864908, 8098622, 9348986, 16197244, 18697972, 32721451, 65442902, 107513339, 130885804, 215026678, 229050157, 430053356, 458100314, 752593373, 916200628, 1505186746, 3010373492, 5268153611, 10536307222, 21072614444]

約数ペア:

[(1, 21072614444), (2, 10536307222), (4, 5268153611), (7, 3010373492), (14, 1505186746), (23, 916200628), (28, 752593373), (46, 458100314), (49, 430053356), (92, 229050157), (98, 215026678), (161, 130885804), (196, 107513339), (322, 65442902), (644, 32721451), (1127, 18697972), (1301, 16197244), (2254, 9348986), (2602, 8098622), (3593, 5864908), (4508, 4674493), (5204, 4049311), (7186, 2932454), (9107, 2313892), (14372, 1466227), (18214, 1156946), (25151, 837844), (29923, 704228), (36428, 578473), (50302, 418922), (59846, 352114), (63749, 330556), (82639, 254996), (100604, 209461), (119692, 176057), (127498, 165278)]