21864941

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{4273}}^1$

素因数の和:4340

約数の個数: 16

約数和(自身を含む): 27080064

約数和(自身を除く): 5215123

約数列:

[1, 7, 17, 43, 119, 301, 731, 4273, 5117, 29911, 72641, 183739, 508487, 1286173, 3123563, 21864941]

約数ペア:

[(1, 21864941), (7, 3123563), (17, 1286173), (43, 508487), (119, 183739), (301, 72641), (731, 29911), (4273, 5117)]