28131663

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{547}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 44892160

約数和(自身を除く): 16760497

約数列:

[1, 3, 7, 21, 31, 79, 93, 217, 237, 547, 553, 651, 1641, 1659, 2449, 3829, 7347, 11487, 16957, 17143, 43213, 50871, 51429, 118699, 129639, 302491, 356097, 907473, 1339603, 4018809, 9377221, 28131663]

約数ペア:

[(1, 28131663), (3, 9377221), (7, 4018809), (21, 1339603), (31, 907473), (79, 356097), (93, 302491), (217, 129639), (237, 118699), (547, 51429), (553, 50871), (651, 43213), (1641, 17143), (1659, 16957), (2449, 11487), (3829, 7347)]