21031888618

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{53117}}^1$

素因数の和:53386

約数の個数: 32

約数和(自身を含む): 34544122704

約数和(自身を除く): 13512234086

約数列:

[1, 2, 13, 26, 97, 157, 194, 314, 1261, 2041, 2522, 4082, 15229, 30458, 53117, 106234, 197977, 395954, 690521, 1381042, 5152349, 8339369, 10304698, 16678738, 66980537, 108411797, 133961074, 216823594, 808918793, 1617837586, 10515944309, 21031888618]

約数ペア:

[(1, 21031888618), (2, 10515944309), (13, 1617837586), (26, 808918793), (97, 216823594), (157, 133961074), (194, 108411797), (314, 66980537), (1261, 16678738), (2041, 10304698), (2522, 8339369), (4082, 5152349), (15229, 1381042), (30458, 690521), (53117, 395954), (106234, 197977)]