21868515

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7043}}^1$

素因数の和:7080

約数の個数: 32

約数和(自身を含む): 40573440

約数和(自身を除く): 18704925

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 7043, 21129, 35215, 63387, 105645, 161989, 190161, 316935, 485967, 809945, 950805, 1457901, 2429835, 4373703, 7289505, 21868515]

約数ペア:

[(1, 21868515), (3, 7289505), (5, 4373703), (9, 2429835), (15, 1457901), (23, 950805), (27, 809945), (45, 485967), (69, 316935), (115, 190161), (135, 161989), (207, 105645), (345, 63387), (621, 35215), (1035, 21129), (3105, 7043)]