21485416

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{9293}}^1$

素因数の和:9333

約数の個数: 24

約数和(自身を含む): 42798870

約数和(自身を除く): 21313454

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 9293, 18586, 37172, 74344, 157981, 315962, 631924, 1263848, 2685677, 5371354, 10742708, 21485416]

約数ペア:

[(1, 21485416), (2, 10742708), (4, 5371354), (8, 2685677), (17, 1263848), (34, 631924), (68, 315962), (136, 157981), (289, 74344), (578, 37172), (1156, 18586), (2312, 9293)]