21222718

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{12211}}^1$

素因数の和:12303

約数の個数: 16

約数和(自身を含む): 35170560

約数和(自身を除く): 13947842

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 12211, 24422, 134321, 268642, 964669, 1929338, 10611359, 21222718]

約数ペア:

[(1, 21222718), (2, 10611359), (11, 1929338), (22, 964669), (79, 268642), (158, 134321), (869, 24422), (1738, 12211)]