20857534158

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{21383}}^1$

素因数の和:21609

約数の個数: 64

約数和(自身を含む): 45117844992

約数和(自身を除く): 24260310834

約数列:

[1, 2, 3, 6, 17, 34, 51, 73, 102, 131, 146, 219, 262, 393, 438, 786, 1241, 2227, 2482, 3723, 4454, 6681, 7446, 9563, 13362, 19126, 21383, 28689, 42766, 57378, 64149, 128298, 162571, 325142, 363511, 487713, 727022, 975426, 1090533, 1560959, 2181066, 2801173, 3121918, 4682877, 5602346, 8403519, 9365754, 16807038, 26536303, 47619941, 53072606, 79608909, 95239882, 142859823, 159217818, 204485629, 285719646, 408971258, 613456887, 1226913774, 3476255693, 6952511386, 10428767079, 20857534158]

約数ペア:

[(1, 20857534158), (2, 10428767079), (3, 6952511386), (6, 3476255693), (17, 1226913774), (34, 613456887), (51, 408971258), (73, 285719646), (102, 204485629), (131, 159217818), (146, 142859823), (219, 95239882), (262, 79608909), (393, 53072606), (438, 47619941), (786, 26536303), (1241, 16807038), (2227, 9365754), (2482, 8403519), (3723, 5602346), (4454, 4682877), (6681, 3121918), (7446, 2801173), (9563, 2181066), (13362, 1560959), (19126, 1090533), (21383, 975426), (28689, 727022), (42766, 487713), (57378, 363511), (64149, 325142), (128298, 162571)]