21326344

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4363}}^1$

素因数の和:4429

約数の個数: 32

約数和(自身を含む): 43989120

約数和(自身を除く): 22662776

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4363, 4888, 8726, 17452, 34904, 56719, 113438, 205061, 226876, 410122, 453752, 820244, 1640488, 2665793, 5331586, 10663172, 21326344]

約数ペア:

[(1, 21326344), (2, 10663172), (4, 5331586), (8, 2665793), (13, 1640488), (26, 820244), (47, 453752), (52, 410122), (94, 226876), (104, 205061), (188, 113438), (376, 56719), (611, 34904), (1222, 17452), (2444, 8726), (4363, 4888)]