31720101

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{277}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 53242560

約数和(自身を除く): 21522459

約数列:

[1, 3, 7, 19, 21, 41, 49, 57, 123, 133, 147, 277, 287, 399, 779, 831, 861, 931, 1939, 2009, 2337, 2793, 5263, 5453, 5817, 6027, 11357, 13573, 15789, 16359, 34071, 36841, 38171, 40719, 79499, 110523, 114513, 215783, 238497, 257887, 556493, 647349, 773661, 1510481, 1669479, 4531443, 10573367, 31720101]

約数ペア:

[(1, 31720101), (3, 10573367), (7, 4531443), (19, 1669479), (21, 1510481), (41, 773661), (49, 647349), (57, 556493), (123, 257887), (133, 238497), (147, 215783), (277, 114513), (287, 110523), (399, 79499), (779, 40719), (831, 38171), (861, 36841), (931, 34071), (1939, 16359), (2009, 15789), (2337, 13573), (2793, 11357), (5263, 6027), (5453, 5817)]