213658753

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{541}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 279724032

約数和(自身を除く): 66065279

約数列:

[1, 7, 11, 23, 77, 161, 223, 253, 541, 1561, 1771, 2453, 3787, 5129, 5951, 12443, 17171, 35903, 41657, 56419, 87101, 120643, 136873, 394933, 844501, 958111, 1327073, 2774789, 9289511, 19423523, 30522679, 213658753]

約数ペア:

[(1, 213658753), (7, 30522679), (11, 19423523), (23, 9289511), (77, 2774789), (161, 1327073), (223, 958111), (253, 844501), (541, 394933), (1561, 136873), (1771, 120643), (2453, 87101), (3787, 56419), (5129, 41657), (5951, 35903), (12443, 17171)]