19293895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 6833465

約数列:

[1, 5, 17, 23, 71, 85, 115, 139, 355, 391, 695, 1207, 1633, 1955, 2363, 3197, 6035, 8165, 9869, 11815, 15985, 27761, 49345, 54349, 138805, 167773, 226987, 271745, 838865, 1134935, 3858779, 19293895]

約数ペア:

[(1, 19293895), (5, 3858779), (17, 1134935), (23, 838865), (71, 271745), (85, 226987), (115, 167773), (139, 138805), (355, 54349), (391, 49345), (695, 27761), (1207, 15985), (1633, 11815), (1955, 9869), (2363, 8165), (3197, 6035)]