20657238

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{2843}}^1$

素因数の和:3028

約数の個数: 32

約数和(自身を含む): 47506176

約数和(自身を除く): 26848938

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 173, 346, 519, 1038, 1211, 2422, 2843, 3633, 5686, 7266, 8529, 17058, 19901, 39802, 59703, 119406, 491839, 983678, 1475517, 2951034, 3442873, 6885746, 10328619, 20657238]

約数ペア:

[(1, 20657238), (2, 10328619), (3, 6885746), (6, 3442873), (7, 2951034), (14, 1475517), (21, 983678), (42, 491839), (173, 119406), (346, 59703), (519, 39802), (1038, 19901), (1211, 17058), (2422, 8529), (2843, 7266), (3633, 5686)]