21221912

素因数分解:

$2^3\times {\mathrm{1301}}^1\times {\mathrm{2039}}^1$

素因数の和:3346

約数の個数: 16

約数和(自身を含む): 39841200

約数和(自身を除く): 18619288

約数列:

[1, 2, 4, 8, 1301, 2039, 2602, 4078, 5204, 8156, 10408, 16312, 2652739, 5305478, 10610956, 21221912]

約数ペア:

[(1, 21221912), (2, 10610956), (4, 5305478), (8, 2652739), (1301, 16312), (2039, 10408), (2602, 8156), (4078, 5204)]