19988646

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2617}}^1$

素因数の和:2708

約数の個数: 32

約数和(自身を含む): 42725760

約数和(自身を除く): 22737114

約数列:

[1, 2, 3, 6, 19, 38, 57, 67, 114, 134, 201, 402, 1273, 2546, 2617, 3819, 5234, 7638, 7851, 15702, 49723, 99446, 149169, 175339, 298338, 350678, 526017, 1052034, 3331441, 6662882, 9994323, 19988646]

約数ペア:

[(1, 19988646), (2, 9994323), (3, 6662882), (6, 3331441), (19, 1052034), (38, 526017), (57, 350678), (67, 298338), (114, 175339), (134, 149169), (201, 99446), (402, 49723), (1273, 15702), (2546, 7851), (2617, 7638), (3819, 5234)]