18970276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{743}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 35872704

約数和(自身を除く): 16902428

約数列:

[1, 2, 4, 13, 26, 52, 491, 743, 982, 1486, 1964, 2972, 6383, 9659, 12766, 19318, 25532, 38636, 364813, 729626, 1459252, 4742569, 9485138, 18970276]

約数ペア:

[(1, 18970276), (2, 9485138), (4, 4742569), (13, 1459252), (26, 729626), (52, 364813), (491, 38636), (743, 25532), (982, 19318), (1486, 12766), (1964, 9659), (2972, 6383)]