21989338

素因数分解:

$2^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{1297}}^1$

素因数の和:1486

約数の個数: 24

約数和(自身を含む): 38620692

約数和(自身を除く): 16631354

約数列:

[1, 2, 7, 14, 49, 98, 173, 346, 1211, 1297, 2422, 2594, 8477, 9079, 16954, 18158, 63553, 127106, 224381, 448762, 1570667, 3141334, 10994669, 21989338]

約数ペア:

[(1, 21989338), (2, 10994669), (7, 3141334), (14, 1570667), (49, 448762), (98, 224381), (173, 127106), (346, 63553), (1211, 18158), (1297, 16954), (2422, 9079), (2594, 8477)]