19860828

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7489}}^1$

素因数の和:7526

約数の個数: 48

約数和(自身を含む): 52849440

約数和(自身を除く): 32988612

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 204, 221, 442, 663, 884, 1326, 2652, 7489, 14978, 22467, 29956, 44934, 89868, 97357, 127313, 194714, 254626, 292071, 381939, 389428, 509252, 584142, 763878, 1168284, 1527756, 1655069, 3310138, 4965207, 6620276, 9930414, 19860828]

約数ペア:

[(1, 19860828), (2, 9930414), (3, 6620276), (4, 4965207), (6, 3310138), (12, 1655069), (13, 1527756), (17, 1168284), (26, 763878), (34, 584142), (39, 509252), (51, 389428), (52, 381939), (68, 292071), (78, 254626), (102, 194714), (156, 127313), (204, 97357), (221, 89868), (442, 44934), (663, 29956), (884, 22467), (1326, 14978), (2652, 7489)]