2558178

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 6439680

約数和(自身を除く): 3881502

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 79, 126, 158, 237, 257, 474, 514, 553, 711, 771, 1106, 1422, 1542, 1659, 1799, 2313, 3318, 3598, 4626, 4977, 5397, 9954, 10794, 16191, 20303, 32382, 40606, 60909, 121818, 142121, 182727, 284242, 365454, 426363, 852726, 1279089, 2558178]

約数ペア:

[(1, 2558178), (2, 1279089), (3, 852726), (6, 426363), (7, 365454), (9, 284242), (14, 182727), (18, 142121), (21, 121818), (42, 60909), (63, 40606), (79, 32382), (126, 20303), (158, 16191), (237, 10794), (257, 9954), (474, 5397), (514, 4977), (553, 4626), (711, 3598), (771, 3318), (1106, 2313), (1422, 1799), (1542, 1659)]