21010376

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{70981}}^1$

素因数の和:71024

約数の個数: 16

約数和(自身を含む): 40459740

約数和(自身を除く): 19449364

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 70981, 141962, 283924, 567848, 2626297, 5252594, 10505188, 21010376]

約数ペア:

[(1, 21010376), (2, 10505188), (4, 5252594), (8, 2626297), (37, 567848), (74, 283924), (148, 141962), (296, 70981)]