21070611

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{4409}}^1$

素因数の和:4480

約数の個数: 20

約数和(自身を含む): 32016600

約数和(自身を除く): 10945989

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4409, 4779, 13227, 39681, 119043, 260131, 357129, 780393, 2341179, 7023537, 21070611]

約数ペア:

[(1, 21070611), (3, 7023537), (9, 2341179), (27, 780393), (59, 357129), (81, 260131), (177, 119043), (531, 39681), (1593, 13227), (4409, 4779)]