28199955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{11677}}^1$

素因数の和:11715

約数の個数: 32

約数和(自身を含む): 53812224

約数和(自身を除く): 25612269

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 11677, 35031, 58385, 81739, 175155, 245217, 268571, 408695, 805713, 1226085, 1342855, 1879997, 4028565, 5639991, 9399985, 28199955]

約数ペア:

[(1, 28199955), (3, 9399985), (5, 5639991), (7, 4028565), (15, 1879997), (21, 1342855), (23, 1226085), (35, 805713), (69, 408695), (105, 268571), (115, 245217), (161, 175155), (345, 81739), (483, 58385), (805, 35031), (2415, 11677)]