25401803

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 32378880

約数和(自身を除く): 6977077

約数列:

[1, 7, 19, 31, 61, 101, 133, 217, 427, 589, 707, 1159, 1891, 1919, 3131, 4123, 6161, 8113, 13237, 13433, 21917, 35929, 43127, 59489, 117059, 190991, 251503, 416423, 819413, 1336937, 3628829, 25401803]

約数ペア:

[(1, 25401803), (7, 3628829), (19, 1336937), (31, 819413), (61, 416423), (101, 251503), (133, 190991), (217, 117059), (427, 59489), (589, 43127), (707, 35929), (1159, 21917), (1891, 13433), (1919, 13237), (3131, 8113), (4123, 6161)]