21277060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{401}}^1$

素因数の和:796

約数の個数: 48

約数和(自身を含む): 51327360

約数和(自身を除く): 30050300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 379, 401, 758, 802, 1516, 1604, 1895, 2005, 2653, 2807, 3790, 4010, 5306, 5614, 7580, 8020, 10612, 11228, 13265, 14035, 26530, 28070, 53060, 56140, 151979, 303958, 607916, 759895, 1063853, 1519790, 2127706, 3039580, 4255412, 5319265, 10638530, 21277060]

約数ペア:

[(1, 21277060), (2, 10638530), (4, 5319265), (5, 4255412), (7, 3039580), (10, 2127706), (14, 1519790), (20, 1063853), (28, 759895), (35, 607916), (70, 303958), (140, 151979), (379, 56140), (401, 53060), (758, 28070), (802, 26530), (1516, 14035), (1604, 13265), (1895, 11228), (2005, 10612), (2653, 8020), (2807, 7580), (3790, 5614), (4010, 5306)]