20915187718

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1\times {\mathrm{641}}^1\times {\mathrm{1109}}^1$

素因数の和:2112

約数の個数: 32

約数和(自身を含む): 32221825920

約数和(自身を除く): 11306638202

約数列:

[1, 2, 47, 94, 313, 626, 641, 1109, 1282, 2218, 14711, 29422, 30127, 52123, 60254, 104246, 200633, 347117, 401266, 694234, 710869, 1421738, 9429751, 16314499, 18859502, 32628998, 33410843, 66821686, 222501997, 445003994, 10457593859, 20915187718]

約数ペア:

[(1, 20915187718), (2, 10457593859), (47, 445003994), (94, 222501997), (313, 66821686), (626, 33410843), (641, 32628998), (1109, 18859502), (1282, 16314499), (2218, 9429751), (14711, 1421738), (29422, 710869), (30127, 694234), (52123, 401266), (60254, 347117), (104246, 200633)]