19805916

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{126961}}^1$

素因数の和:126981

約数の個数: 24

約数和(自身を含む): 49769104

約数和(自身を除く): 29963188

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 126961, 253922, 380883, 507844, 761766, 1523532, 1650493, 3300986, 4951479, 6601972, 9902958, 19805916]

約数ペア:

[(1, 19805916), (2, 9902958), (3, 6601972), (4, 4951479), (6, 3300986), (12, 1650493), (13, 1523532), (26, 761766), (39, 507844), (52, 380883), (78, 253922), (156, 126961)]