19989928

素因数分解:

$2^3\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1327}}^1$

素因数の和:1609

約数の個数: 32

約数和(自身を含む): 43027200

約数和(自身を除く): 23037272

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 269, 538, 1076, 1327, 1883, 2152, 2654, 3766, 5308, 7532, 9289, 10616, 15064, 18578, 37156, 74312, 356963, 713926, 1427852, 2498741, 2855704, 4997482, 9994964, 19989928]

約数ペア:

[(1, 19989928), (2, 9994964), (4, 4997482), (7, 2855704), (8, 2498741), (14, 1427852), (28, 713926), (56, 356963), (269, 74312), (538, 37156), (1076, 18578), (1327, 15064), (1883, 10616), (2152, 9289), (2654, 7532), (3766, 5308)]