21988329

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{2477}}^1$

素因数の和:2760

約数の個数: 16

約数和(自身を含む): 32114880

約数和(自身を除く): 10126551

約数列:

[1, 3, 11, 33, 269, 807, 2477, 2959, 7431, 8877, 27247, 81741, 666313, 1998939, 7329443, 21988329]

約数ペア:

[(1, 21988329), (3, 7329443), (11, 1998939), (33, 666313), (269, 81741), (807, 27247), (2477, 8877), (2959, 7431)]