21371499

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{461}}^1$

素因数の和:588

約数の個数: 32

約数和(自身を含む): 33929280

約数和(自身を除く): 12557781

約数列:

[1, 3, 9, 17, 27, 51, 101, 153, 303, 459, 461, 909, 1383, 1717, 2727, 4149, 5151, 7837, 12447, 15453, 23511, 46359, 46561, 70533, 139683, 211599, 419049, 791537, 1257147, 2374611, 7123833, 21371499]

約数ペア:

[(1, 21371499), (3, 7123833), (9, 2374611), (17, 1257147), (27, 791537), (51, 419049), (101, 211599), (153, 139683), (303, 70533), (459, 46561), (461, 46359), (909, 23511), (1383, 15453), (1717, 12447), (2727, 7837), (4149, 5151)]