21553171208

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1\times {\mathrm{7151}}^1$

素因数の和:7506

約数の個数: 64

約数和(自身を含む): 43255296000

約数和(自身を除く): 21702124792

約数列:

[1, 2, 4, 8, 19, 38, 76, 79, 152, 158, 251, 316, 502, 632, 1004, 1501, 2008, 3002, 4769, 6004, 7151, 9538, 12008, 14302, 19076, 19829, 28604, 38152, 39658, 57208, 79316, 135869, 158632, 271738, 376751, 543476, 564929, 753502, 1086952, 1129858, 1507004, 1794901, 2259716, 3014008, 3589802, 4519432, 7179604, 10733651, 14359208, 21467302, 34103119, 42934604, 68206238, 85869208, 136412476, 141797179, 272824952, 283594358, 567188716, 1134377432, 2694146401, 5388292802, 10776585604, 21553171208]

約数ペア:

[(1, 21553171208), (2, 10776585604), (4, 5388292802), (8, 2694146401), (19, 1134377432), (38, 567188716), (76, 283594358), (79, 272824952), (152, 141797179), (158, 136412476), (251, 85869208), (316, 68206238), (502, 42934604), (632, 34103119), (1004, 21467302), (1501, 14359208), (2008, 10733651), (3002, 7179604), (4769, 4519432), (6004, 3589802), (7151, 3014008), (9538, 2259716), (12008, 1794901), (14302, 1507004), (19076, 1129858), (19829, 1086952), (28604, 753502), (38152, 564929), (39658, 543476), (57208, 376751), (79316, 271738), (135869, 158632)]