21289335

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 35640000

約数和(自身を除く): 14350665

約数列:

[1, 3, 5, 15, 29, 87, 109, 145, 327, 435, 449, 545, 1347, 1635, 2245, 3161, 6735, 9483, 13021, 15805, 39063, 47415, 48941, 65105, 146823, 195315, 244705, 734115, 1419289, 4257867, 7096445, 21289335]

約数ペア:

[(1, 21289335), (3, 7096445), (5, 4257867), (15, 1419289), (29, 734115), (87, 244705), (109, 195315), (145, 146823), (327, 65105), (435, 48941), (449, 47415), (545, 39063), (1347, 15805), (1635, 13021), (2245, 9483), (3161, 6735)]