21911144

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{40879}}^1$

素因数の和:40952

約数の個数: 16

約数和(自身を含む): 41697600

約数和(自身を除く): 19786456

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 40879, 81758, 163516, 327032, 2738893, 5477786, 10955572, 21911144]

約数ペア:

[(1, 21911144), (2, 10955572), (4, 5477786), (8, 2738893), (67, 327032), (134, 163516), (268, 81758), (536, 40879)]