20764515

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{433}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 34997760

約数和(自身を除く): 14233245

約数列:

[1, 3, 5, 15, 23, 69, 115, 139, 345, 417, 433, 695, 1299, 2085, 2165, 3197, 6495, 9591, 9959, 15985, 29877, 47955, 49795, 60187, 149385, 180561, 300935, 902805, 1384301, 4152903, 6921505, 20764515]

約数ペア:

[(1, 20764515), (3, 6921505), (5, 4152903), (15, 1384301), (23, 902805), (69, 300935), (115, 180561), (139, 149385), (345, 60187), (417, 49795), (433, 47955), (695, 29877), (1299, 15985), (2085, 9959), (2165, 9591), (3197, 6495)]