19578284

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2129}}^1$

素因数の和:2174

約数の個数: 36

約数和(自身を含む): 39660600

約数和(自身を除く): 20082316

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 2129, 2299, 4258, 4598, 8516, 9196, 23419, 40451, 46838, 80902, 93676, 161804, 257609, 444961, 515218, 889922, 1030436, 1779844, 4894571, 9789142, 19578284]

約数ペア:

[(1, 19578284), (2, 9789142), (4, 4894571), (11, 1779844), (19, 1030436), (22, 889922), (38, 515218), (44, 444961), (76, 257609), (121, 161804), (209, 93676), (242, 80902), (418, 46838), (484, 40451), (836, 23419), (2129, 9196), (2299, 8516), (4258, 4598)]