21294704

素因数分解:

$2^4\times {\mathrm{401}}^1\times {\mathrm{3319}}^1$

素因数の和:3728

約数の個数: 20

約数和(自身を含む): 41373840

約数和(自身を除く): 20079136

約数列:

[1, 2, 4, 8, 16, 401, 802, 1604, 3208, 3319, 6416, 6638, 13276, 26552, 53104, 1330919, 2661838, 5323676, 10647352, 21294704]

約数ペア:

[(1, 21294704), (2, 10647352), (4, 5323676), (8, 2661838), (16, 1330919), (401, 53104), (802, 26552), (1604, 13276), (3208, 6638), (3319, 6416)]