21919766

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:149

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 19137514

約数列:

[1, 2, 11, 17, 22, 29, 34, 43, 47, 58, 86, 94, 187, 319, 374, 473, 493, 517, 638, 731, 799, 946, 986, 1034, 1247, 1363, 1462, 1598, 2021, 2494, 2726, 4042, 5423, 8041, 8789, 10846, 13717, 14993, 16082, 17578, 21199, 22231, 23171, 27434, 29986, 34357, 42398, 44462, 46342, 58609, 68714, 117218, 233189, 254881, 377927, 466378, 509762, 644699, 755854, 996353, 1289398, 1992706, 10959883, 21919766]

約数ペア:

[(1, 21919766), (2, 10959883), (11, 1992706), (17, 1289398), (22, 996353), (29, 755854), (34, 644699), (43, 509762), (47, 466378), (58, 377927), (86, 254881), (94, 233189), (187, 117218), (319, 68714), (374, 58609), (473, 46342), (493, 44462), (517, 42398), (638, 34357), (731, 29986), (799, 27434), (946, 23171), (986, 22231), (1034, 21199), (1247, 17578), (1363, 16082), (1462, 14993), (1598, 13717), (2021, 10846), (2494, 8789), (2726, 8041), (4042, 5423)]