199987438

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{3121}}^1$

素因数の和:3352

約数の個数: 32

約数和(自身を含む): 359654400

約数和(自身を除く): 159666962

約数列:

[1, 2, 7, 14, 23, 46, 161, 199, 322, 398, 1393, 2786, 3121, 4577, 6242, 9154, 21847, 32039, 43694, 64078, 71783, 143566, 502481, 621079, 1004962, 1242158, 4347553, 8695106, 14284817, 28569634, 99993719, 199987438]

約数ペア:

[(1, 199987438), (2, 99993719), (7, 28569634), (14, 14284817), (23, 8695106), (46, 4347553), (161, 1242158), (199, 1004962), (322, 621079), (398, 502481), (1393, 143566), (2786, 71783), (3121, 64078), (4577, 43694), (6242, 32039), (9154, 21847)]