12855255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{641}}^1$

素因数の和:847

約数の個数: 32

約数和(自身を含む): 23666688

約数和(自身を除く): 10811433

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191, 573, 641, 955, 1337, 1923, 2865, 3205, 4011, 4487, 6685, 9615, 13461, 20055, 22435, 67305, 122431, 367293, 612155, 857017, 1836465, 2571051, 4285085, 12855255]

約数ペア:

[(1, 12855255), (3, 4285085), (5, 2571051), (7, 1836465), (15, 857017), (21, 612155), (35, 367293), (105, 122431), (191, 67305), (573, 22435), (641, 20055), (955, 13461), (1337, 9615), (1923, 6685), (2865, 4487), (3205, 4011)]