21706892

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 43273440

約数和(自身を除く): 21566548

約数列:

[1, 2, 4, 17, 19, 34, 38, 53, 68, 76, 106, 212, 317, 323, 634, 646, 901, 1007, 1268, 1292, 1802, 2014, 3604, 4028, 5389, 6023, 10778, 12046, 16801, 17119, 21556, 24092, 33602, 34238, 67204, 68476, 102391, 204782, 285617, 319219, 409564, 571234, 638438, 1142468, 1276876, 5426723, 10853446, 21706892]

約数ペア:

[(1, 21706892), (2, 10853446), (4, 5426723), (17, 1276876), (19, 1142468), (34, 638438), (38, 571234), (53, 409564), (68, 319219), (76, 285617), (106, 204782), (212, 102391), (317, 68476), (323, 67204), (634, 34238), (646, 33602), (901, 24092), (1007, 21556), (1268, 17119), (1292, 16801), (1802, 12046), (2014, 10778), (3604, 6023), (4028, 5389)]