20509284

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3911}}^1$

素因数の和:3960

約数の個数: 48

約数和(自身を含む): 52577280

約数和(自身を除く): 32067996

約数列:

[1, 2, 3, 4, 6, 12, 19, 23, 38, 46, 57, 69, 76, 92, 114, 138, 228, 276, 437, 874, 1311, 1748, 2622, 3911, 5244, 7822, 11733, 15644, 23466, 46932, 74309, 89953, 148618, 179906, 222927, 269859, 297236, 359812, 445854, 539718, 891708, 1079436, 1709107, 3418214, 5127321, 6836428, 10254642, 20509284]

約数ペア:

[(1, 20509284), (2, 10254642), (3, 6836428), (4, 5127321), (6, 3418214), (12, 1709107), (19, 1079436), (23, 891708), (38, 539718), (46, 445854), (57, 359812), (69, 297236), (76, 269859), (92, 222927), (114, 179906), (138, 148618), (228, 89953), (276, 74309), (437, 46932), (874, 23466), (1311, 15644), (1748, 11733), (2622, 7822), (3911, 5244)]