21765568

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{719}}^1$

素因数の和:785

約数の個数: 56

約数和(自身を含む): 48280320

約数和(自身を除く): 26514752

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 64, 86, 88, 172, 176, 344, 352, 473, 688, 704, 719, 946, 1376, 1438, 1892, 2752, 2876, 3784, 5752, 7568, 7909, 11504, 15136, 15818, 23008, 30272, 30917, 31636, 46016, 61834, 63272, 123668, 126544, 247336, 253088, 340087, 494672, 506176, 680174, 989344, 1360348, 1978688, 2720696, 5441392, 10882784, 21765568]

約数ペア:

[(1, 21765568), (2, 10882784), (4, 5441392), (8, 2720696), (11, 1978688), (16, 1360348), (22, 989344), (32, 680174), (43, 506176), (44, 494672), (64, 340087), (86, 253088), (88, 247336), (172, 126544), (176, 123668), (344, 63272), (352, 61834), (473, 46016), (688, 31636), (704, 30917), (719, 30272), (946, 23008), (1376, 15818), (1438, 15136), (1892, 11504), (2752, 7909), (2876, 7568), (3784, 5752)]