20149605

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1361}}^1$

素因数の和:1426

約数の個数: 48

約数和(自身を含む): 40794624

約数和(自身を除く): 20645019

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 47, 63, 105, 141, 235, 315, 329, 423, 705, 987, 1361, 1645, 2115, 2961, 4083, 4935, 6805, 9527, 12249, 14805, 20415, 28581, 47635, 61245, 63967, 85743, 142905, 191901, 319835, 428715, 447769, 575703, 959505, 1343307, 2238845, 2878515, 4029921, 6716535, 20149605]

約数ペア:

[(1, 20149605), (3, 6716535), (5, 4029921), (7, 2878515), (9, 2238845), (15, 1343307), (21, 959505), (35, 575703), (45, 447769), (47, 428715), (63, 319835), (105, 191901), (141, 142905), (235, 85743), (315, 63967), (329, 61245), (423, 47635), (705, 28581), (987, 20415), (1361, 14805), (1645, 12249), (2115, 9527), (2961, 6805), (4083, 4935)]