21339864

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3257}}^1$

素因数の和:3289

約数の個数: 96

約数和(自身を含む): 71154720

約数和(自身を除く): 49814856

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 28, 36, 39, 42, 52, 56, 63, 72, 78, 84, 91, 104, 117, 126, 156, 168, 182, 234, 252, 273, 312, 364, 468, 504, 546, 728, 819, 936, 1092, 1638, 2184, 3257, 3276, 6514, 6552, 9771, 13028, 19542, 22799, 26056, 29313, 39084, 42341, 45598, 58626, 68397, 78168, 84682, 91196, 117252, 127023, 136794, 169364, 182392, 205191, 234504, 254046, 273588, 296387, 338728, 381069, 410382, 508092, 547176, 592774, 762138, 820764, 889161, 1016184, 1185548, 1524276, 1641528, 1778322, 2371096, 2667483, 3048552, 3556644, 5334966, 7113288, 10669932, 21339864]

約数ペア:

[(1, 21339864), (2, 10669932), (3, 7113288), (4, 5334966), (6, 3556644), (7, 3048552), (8, 2667483), (9, 2371096), (12, 1778322), (13, 1641528), (14, 1524276), (18, 1185548), (21, 1016184), (24, 889161), (26, 820764), (28, 762138), (36, 592774), (39, 547176), (42, 508092), (52, 410382), (56, 381069), (63, 338728), (72, 296387), (78, 273588), (84, 254046), (91, 234504), (104, 205191), (117, 182392), (126, 169364), (156, 136794), (168, 127023), (182, 117252), (234, 91196), (252, 84682), (273, 78168), (312, 68397), (364, 58626), (468, 45598), (504, 42341), (546, 39084), (728, 29313), (819, 26056), (936, 22799), (1092, 19542), (1638, 13028), (2184, 9771), (3257, 6552), (3276, 6514)]