21061780496612

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{1987}}^1\times {\mathrm{6967}}^1\times {\mathrm{9277}}^1$

素因数の和:18276

約数の個数: 48

約数和(自身を含む): 37785591113088

約数和(自身を除く): 16723810616476

約数列:

[1, 2, 4, 41, 82, 164, 1987, 3974, 6967, 7948, 9277, 13934, 18554, 27868, 37108, 81467, 162934, 285647, 325868, 380357, 571294, 760714, 1142588, 1521428, 13843429, 18433399, 27686858, 36866798, 55373716, 64632859, 73733596, 129265718, 258531436, 567580589, 755769359, 1135161178, 1511538718, 2270322356, 2649947219, 3023077436, 5299894438, 10599788876, 128425490833, 256850981666, 513701963332, 5265445124153, 10530890248306, 21061780496612]

約数ペア:

[(1, 21061780496612), (2, 10530890248306), (4, 5265445124153), (41, 513701963332), (82, 256850981666), (164, 128425490833), (1987, 10599788876), (3974, 5299894438), (6967, 3023077436), (7948, 2649947219), (9277, 2270322356), (13934, 1511538718), (18554, 1135161178), (27868, 755769359), (37108, 567580589), (81467, 258531436), (162934, 129265718), (285647, 73733596), (325868, 64632859), (380357, 55373716), (571294, 36866798), (760714, 27686858), (1142588, 18433399), (1521428, 13843429)]