19499403

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 34145280

約数和(自身を除く): 14645877

約数列:

[1, 3, 7, 11, 21, 31, 33, 49, 77, 93, 147, 217, 231, 341, 389, 539, 651, 1023, 1167, 1519, 1617, 2387, 2723, 4279, 4557, 7161, 8169, 12059, 12837, 16709, 19061, 29953, 36177, 50127, 57183, 84413, 89859, 132649, 209671, 253239, 397947, 590891, 629013, 928543, 1772673, 2785629, 6499801, 19499403]

約数ペア:

[(1, 19499403), (3, 6499801), (7, 2785629), (11, 1772673), (21, 928543), (31, 629013), (33, 590891), (49, 397947), (77, 253239), (93, 209671), (147, 132649), (217, 89859), (231, 84413), (341, 57183), (389, 50127), (539, 36177), (651, 29953), (1023, 19061), (1167, 16709), (1519, 12837), (1617, 12059), (2387, 8169), (2723, 7161), (4279, 4557)]