20513103

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 32772096

約数和(自身を除く): 12258993

約数列:

[1, 3, 13, 19, 31, 39, 47, 57, 93, 141, 247, 361, 403, 589, 611, 741, 893, 1083, 1209, 1457, 1767, 1833, 2679, 4371, 4693, 7657, 11191, 11609, 14079, 16967, 18941, 22971, 27683, 33573, 34827, 50901, 56823, 83049, 145483, 220571, 359879, 436449, 525977, 661713, 1079637, 1577931, 6837701, 20513103]

約数ペア:

[(1, 20513103), (3, 6837701), (13, 1577931), (19, 1079637), (31, 661713), (39, 525977), (47, 436449), (57, 359879), (93, 220571), (141, 145483), (247, 83049), (361, 56823), (403, 50901), (589, 34827), (611, 33573), (741, 27683), (893, 22971), (1083, 18941), (1209, 16967), (1457, 14079), (1767, 11609), (1833, 11191), (2679, 7657), (4371, 4693)]