397820423

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1609}}^1$

素因数の和:1672

約数の個数: 48

約数和(自身を含む): 565689600

約数和(自身を除く): 167869177

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 169, 209, 247, 1001, 1183, 1463, 1609, 1729, 1859, 2717, 3211, 11263, 13013, 17699, 19019, 20917, 22477, 30571, 35321, 123893, 146419, 213997, 230087, 247247, 271921, 336281, 397423, 1610609, 1903447, 2353967, 2781961, 2991131, 4371653, 5166499, 20937917, 30601571, 36165493, 56831489, 397820423]

約数ペア:

[(1, 397820423), (7, 56831489), (11, 36165493), (13, 30601571), (19, 20937917), (77, 5166499), (91, 4371653), (133, 2991131), (143, 2781961), (169, 2353967), (209, 1903447), (247, 1610609), (1001, 397423), (1183, 336281), (1463, 271921), (1609, 247247), (1729, 230087), (1859, 213997), (2717, 146419), (3211, 123893), (11263, 35321), (13013, 30571), (17699, 22477), (19019, 20917)]