211815855

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{7057}}^1$

素因数の和:7120

約数の個数: 48

約数和(自身を含む): 396377280

約数和(自身を除く): 184561425

約数列:

[1, 3, 5, 9, 15, 23, 29, 45, 69, 87, 115, 145, 207, 261, 345, 435, 667, 1035, 1305, 2001, 3335, 6003, 7057, 10005, 21171, 30015, 35285, 63513, 105855, 162311, 204653, 317565, 486933, 613959, 811555, 1023265, 1460799, 1841877, 2434665, 3069795, 4707019, 7303995, 9209385, 14121057, 23535095, 42363171, 70605285, 211815855]

約数ペア:

[(1, 211815855), (3, 70605285), (5, 42363171), (9, 23535095), (15, 14121057), (23, 9209385), (29, 7303995), (45, 4707019), (69, 3069795), (87, 2434665), (115, 1841877), (145, 1460799), (207, 1023265), (261, 811555), (345, 613959), (435, 486933), (667, 317565), (1035, 204653), (1305, 162311), (2001, 105855), (3335, 63513), (6003, 35285), (7057, 30015), (10005, 21171)]