21676228

素因数分解:

$2^2\times 7^4\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 60

約数和(自身を含む): 46194092

約数和(自身を除く): 24517864

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 61, 74, 98, 122, 148, 196, 244, 259, 343, 427, 518, 686, 854, 1036, 1372, 1708, 1813, 2257, 2401, 2989, 3626, 4514, 4802, 5978, 7252, 9028, 9604, 11956, 12691, 15799, 20923, 25382, 31598, 41846, 50764, 63196, 83692, 88837, 110593, 146461, 177674, 221186, 292922, 355348, 442372, 585844, 774151, 1548302, 3096604, 5419057, 10838114, 21676228]

約数ペア:

[(1, 21676228), (2, 10838114), (4, 5419057), (7, 3096604), (14, 1548302), (28, 774151), (37, 585844), (49, 442372), (61, 355348), (74, 292922), (98, 221186), (122, 177674), (148, 146461), (196, 110593), (244, 88837), (259, 83692), (343, 63196), (427, 50764), (518, 41846), (686, 31598), (854, 25382), (1036, 20923), (1372, 15799), (1708, 12691), (1813, 11956), (2257, 9604), (2401, 9028), (2989, 7252), (3626, 5978), (4514, 4802)]