21593908

素因数分解:

$2^2\times 7^3\times {\mathrm{15739}}^1$

素因数の和:15764

約数の個数: 24

約数和(自身を含む): 44072000

約数和(自身を除く): 22478092

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15739, 31478, 62956, 110173, 220346, 440692, 771211, 1542422, 3084844, 5398477, 10796954, 21593908]

約数ペア:

[(1, 21593908), (2, 10796954), (4, 5398477), (7, 3084844), (14, 1542422), (28, 771211), (49, 440692), (98, 220346), (196, 110173), (343, 62956), (686, 31478), (1372, 15739)]