20147621945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3389}}^1\times {\mathrm{5689}}^1$

素因数の和:9113

約数の個数: 32

約数和(自身を含む): 27776304000

約数和(自身を除く): 7628682055

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 3389, 5689, 16945, 28445, 37279, 62579, 64391, 108091, 186395, 312895, 321955, 540455, 708301, 1189001, 3541505, 5945005, 19280021, 96400105, 212080231, 366320399, 1060401155, 1831601995, 4029524389, 20147621945]

約数ペア:

[(1, 20147621945), (5, 4029524389), (11, 1831601995), (19, 1060401155), (55, 366320399), (95, 212080231), (209, 96400105), (1045, 19280021), (3389, 5945005), (5689, 3541505), (16945, 1189001), (28445, 708301), (37279, 540455), (62579, 321955), (64391, 312895), (108091, 186395)]