28674009

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 51530752

約数和(自身を除く): 22856743

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 157, 223, 273, 471, 669, 819, 1099, 1413, 1561, 2007, 2041, 2899, 3297, 4683, 6123, 8697, 9891, 14049, 14287, 18369, 20293, 26091, 35011, 42861, 60879, 105033, 128583, 182637, 245077, 315099, 455143, 735231, 1365429, 2205693, 3186001, 4096287, 9558003, 28674009]

約数ペア:

[(1, 28674009), (3, 9558003), (7, 4096287), (9, 3186001), (13, 2205693), (21, 1365429), (39, 735231), (63, 455143), (91, 315099), (117, 245077), (157, 182637), (223, 128583), (273, 105033), (471, 60879), (669, 42861), (819, 35011), (1099, 26091), (1413, 20293), (1561, 18369), (2007, 14287), (2041, 14049), (2899, 9891), (3297, 8697), (4683, 6123)]