20163857308

素因数分解:

$2^2\times 7^4\times {\mathrm{421}}^1\times {\mathrm{4987}}^1$

素因数の和:5440

約数の個数: 60

約数和(自身を含む): 41271480152

約数和(自身を除く): 21107622844

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 421, 686, 842, 1372, 1684, 2401, 2947, 4802, 4987, 5894, 9604, 9974, 11788, 19948, 20629, 34909, 41258, 69818, 82516, 139636, 144403, 244363, 288806, 488726, 577612, 977452, 1010821, 1710541, 2021642, 2099527, 3421082, 4043284, 4199054, 6842164, 8398108, 11973787, 14696689, 23947574, 29393378, 47895148, 58786756, 102876823, 205753646, 411507292, 720137761, 1440275522, 2880551044, 5040964327, 10081928654, 20163857308]

約数ペア:

[(1, 20163857308), (2, 10081928654), (4, 5040964327), (7, 2880551044), (14, 1440275522), (28, 720137761), (49, 411507292), (98, 205753646), (196, 102876823), (343, 58786756), (421, 47895148), (686, 29393378), (842, 23947574), (1372, 14696689), (1684, 11973787), (2401, 8398108), (2947, 6842164), (4802, 4199054), (4987, 4043284), (5894, 3421082), (9604, 2099527), (9974, 2021642), (11788, 1710541), (19948, 1010821), (20629, 977452), (34909, 577612), (41258, 488726), (69818, 288806), (82516, 244363), (139636, 144403)]