21393416

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 24873784

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 83, 88, 101, 116, 166, 202, 232, 319, 332, 404, 638, 664, 808, 913, 1111, 1276, 1826, 2222, 2407, 2552, 2929, 3652, 4444, 4814, 5858, 7304, 8383, 8888, 9628, 11716, 16766, 19256, 23432, 26477, 32219, 33532, 52954, 64438, 67064, 92213, 105908, 128876, 184426, 211816, 243107, 257752, 368852, 486214, 737704, 972428, 1944856, 2674177, 5348354, 10696708, 21393416]

約数ペア:

[(1, 21393416), (2, 10696708), (4, 5348354), (8, 2674177), (11, 1944856), (22, 972428), (29, 737704), (44, 486214), (58, 368852), (83, 257752), (88, 243107), (101, 211816), (116, 184426), (166, 128876), (202, 105908), (232, 92213), (319, 67064), (332, 64438), (404, 52954), (638, 33532), (664, 32219), (808, 26477), (913, 23432), (1111, 19256), (1276, 16766), (1826, 11716), (2222, 9628), (2407, 8888), (2552, 8383), (2929, 7304), (3652, 5858), (4444, 4814)]