21322544

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42989}}^1$

素因数の和:43028

約数の個数: 20

約数和(自身を含む): 42646080

約数和(自身を除く): 21323536

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42989, 85978, 171956, 343912, 687824, 1332659, 2665318, 5330636, 10661272, 21322544]

約数ペア:

[(1, 21322544), (2, 10661272), (4, 5330636), (8, 2665318), (16, 1332659), (31, 687824), (62, 343912), (124, 171956), (248, 85978), (496, 42989)]