20808515589

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{17393}}^1$

素因数の和:17705

約数の個数: 32

約数和(自身を含む): 29611545600

約数和(自身を除く): 8803030011

約数列:

[1, 3, 19, 57, 139, 151, 417, 453, 2641, 2869, 7923, 8607, 17393, 20989, 52179, 62967, 330467, 398791, 991401, 1196373, 2417627, 2626343, 7252881, 7879029, 45934913, 49900517, 137804739, 149701551, 365061677, 1095185031, 6936171863, 20808515589]

約数ペア:

[(1, 20808515589), (3, 6936171863), (19, 1095185031), (57, 365061677), (139, 149701551), (151, 137804739), (417, 49900517), (453, 45934913), (2641, 7879029), (2869, 7252881), (7923, 2626343), (8607, 2417627), (17393, 1196373), (20989, 991401), (52179, 398791), (62967, 330467)]