21874495

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 29611008

約数和(自身を除く): 7736513

約数列:

[1, 5, 17, 23, 67, 85, 115, 167, 335, 391, 835, 1139, 1541, 1955, 2839, 3841, 5695, 7705, 11189, 14195, 19205, 26197, 55945, 65297, 130985, 190213, 257347, 326485, 951065, 1286735, 4374899, 21874495]

約数ペア:

[(1, 21874495), (5, 4374899), (17, 1286735), (23, 951065), (67, 326485), (85, 257347), (115, 190213), (167, 130985), (335, 65297), (391, 55945), (835, 26197), (1139, 19205), (1541, 14195), (1955, 11189), (2839, 7705), (3841, 5695)]