28223895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{691}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 51816960

約数和(自身を除く): 23593065

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 389, 691, 1167, 1945, 2073, 2723, 3455, 4837, 5835, 8169, 10365, 13615, 14511, 24185, 40845, 72555, 268799, 806397, 1343995, 1881593, 4031985, 5644779, 9407965, 28223895]

約数ペア:

[(1, 28223895), (3, 9407965), (5, 5644779), (7, 4031985), (15, 1881593), (21, 1343995), (35, 806397), (105, 268799), (389, 72555), (691, 40845), (1167, 24185), (1945, 14511), (2073, 13615), (2723, 10365), (3455, 8169), (4837, 5835)]