31478986

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2879}}^1$

素因数の和:2970

約数の個数: 32

約数和(自身を含む): 59719680

約数和(自身を除く): 28240694

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 142, 154, 497, 781, 994, 1562, 2879, 5467, 5758, 10934, 20153, 31669, 40306, 63338, 204409, 221683, 408818, 443366, 1430863, 2248499, 2861726, 4496998, 15739493, 31478986]

約数ペア:

[(1, 31478986), (2, 15739493), (7, 4496998), (11, 2861726), (14, 2248499), (22, 1430863), (71, 443366), (77, 408818), (142, 221683), (154, 204409), (497, 63338), (781, 40306), (994, 31669), (1562, 20153), (2879, 10934), (5467, 5758)]