21322352

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{283}}^1$

素因数の和:585

約数の個数: 40

約数和(自身を含む): 44055216

約数和(自身を除く): 22732864

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 277, 283, 554, 566, 1108, 1132, 2216, 2264, 4432, 4528, 4709, 4811, 9418, 9622, 18836, 19244, 37672, 38488, 75344, 76976, 78391, 156782, 313564, 627128, 1254256, 1332647, 2665294, 5330588, 10661176, 21322352]

約数ペア:

[(1, 21322352), (2, 10661176), (4, 5330588), (8, 2665294), (16, 1332647), (17, 1254256), (34, 627128), (68, 313564), (136, 156782), (272, 78391), (277, 76976), (283, 75344), (554, 38488), (566, 37672), (1108, 19244), (1132, 18836), (2216, 9622), (2264, 9418), (4432, 4811), (4528, 4709)]