20554156

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1489}}^1$

素因数の和:1546

約数の個数: 48

約数和(自身を含む): 45057600

約数和(自身を除く): 24503444

約数列:

[1, 2, 4, 7, 14, 17, 28, 29, 34, 58, 68, 116, 119, 203, 238, 406, 476, 493, 812, 986, 1489, 1972, 2978, 3451, 5956, 6902, 10423, 13804, 20846, 25313, 41692, 43181, 50626, 86362, 101252, 172724, 177191, 302267, 354382, 604534, 708764, 734077, 1209068, 1468154, 2936308, 5138539, 10277078, 20554156]

約数ペア:

[(1, 20554156), (2, 10277078), (4, 5138539), (7, 2936308), (14, 1468154), (17, 1209068), (28, 734077), (29, 708764), (34, 604534), (58, 354382), (68, 302267), (116, 177191), (119, 172724), (203, 101252), (238, 86362), (406, 50626), (476, 43181), (493, 41692), (812, 25313), (986, 20846), (1489, 13804), (1972, 10423), (2978, 6902), (3451, 5956)]