21271146

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:531

約数の個数: 64

約数和(自身を含む): 49889280

約数和(自身を除く): 28618134

約数列:

[1, 2, 3, 6, 13, 19, 26, 31, 38, 39, 57, 62, 78, 93, 114, 186, 247, 403, 463, 494, 589, 741, 806, 926, 1178, 1209, 1389, 1482, 1767, 2418, 2778, 3534, 6019, 7657, 8797, 12038, 14353, 15314, 17594, 18057, 22971, 26391, 28706, 36114, 43059, 45942, 52782, 86118, 114361, 186589, 228722, 272707, 343083, 373178, 545414, 559767, 686166, 818121, 1119534, 1636242, 3545191, 7090382, 10635573, 21271146]

約数ペア:

[(1, 21271146), (2, 10635573), (3, 7090382), (6, 3545191), (13, 1636242), (19, 1119534), (26, 818121), (31, 686166), (38, 559767), (39, 545414), (57, 373178), (62, 343083), (78, 272707), (93, 228722), (114, 186589), (186, 114361), (247, 86118), (403, 52782), (463, 45942), (494, 43059), (589, 36114), (741, 28706), (806, 26391), (926, 22971), (1178, 18057), (1209, 17594), (1389, 15314), (1482, 14353), (1767, 12038), (2418, 8797), (2778, 7657), (3534, 6019)]