28728903

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{17317}}^1$

素因数の和:17406

約数の個数: 16

約数和(自身を含む): 44334080

約数和(自身を除く): 15605177

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 17317, 51951, 121219, 363657, 1368043, 4104129, 9576301, 28728903]

約数ペア:

[(1, 28728903), (3, 9576301), (7, 4104129), (21, 1368043), (79, 363657), (237, 121219), (553, 51951), (1659, 17317)]