21654704

素因数分解:

$2^4\times {\mathrm{179}}^1\times {\mathrm{7561}}^1$

素因数の和:7748

約数の個数: 20

約数和(自身を含む): 42195960

約数和(自身を除く): 20541256

約数列:

[1, 2, 4, 8, 16, 179, 358, 716, 1432, 2864, 7561, 15122, 30244, 60488, 120976, 1353419, 2706838, 5413676, 10827352, 21654704]

約数ペア:

[(1, 21654704), (2, 10827352), (4, 5413676), (8, 2706838), (16, 1353419), (179, 120976), (358, 60488), (716, 30244), (1432, 15122), (2864, 7561)]