20994890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5659}}^1$

素因数の和:5726

約数の個数: 32

約数和(自身を含む): 44012160

約数和(自身を除く): 23017270

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 5659, 11318, 28295, 39613, 56590, 79226, 198065, 299927, 396130, 599854, 1499635, 2099489, 2999270, 4198978, 10497445, 20994890]

約数ペア:

[(1, 20994890), (2, 10497445), (5, 4198978), (7, 2999270), (10, 2099489), (14, 1499635), (35, 599854), (53, 396130), (70, 299927), (106, 198065), (265, 79226), (371, 56590), (530, 39613), (742, 28295), (1855, 11318), (3710, 5659)]