19785898

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:382

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 13921622

約数列:

[1, 2, 11, 22, 37, 74, 109, 218, 223, 407, 446, 814, 1199, 2398, 2453, 4033, 4906, 8066, 8251, 16502, 24307, 44363, 48614, 88726, 90761, 181522, 267377, 534754, 899359, 1798718, 9892949, 19785898]

約数ペア:

[(1, 19785898), (2, 9892949), (11, 1798718), (22, 899359), (37, 534754), (74, 267377), (109, 181522), (218, 90761), (223, 88726), (407, 48614), (446, 44363), (814, 24307), (1199, 16502), (2398, 8251), (2453, 8066), (4033, 4906)]