18772494

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 24773106

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 53, 57, 78, 106, 114, 159, 239, 247, 318, 478, 494, 689, 717, 741, 1007, 1378, 1434, 1482, 2014, 2067, 3021, 3107, 4134, 4541, 6042, 6214, 9082, 9321, 12667, 13091, 13623, 18642, 25334, 26182, 27246, 38001, 39273, 59033, 76002, 78546, 118066, 164671, 177099, 240673, 329342, 354198, 481346, 494013, 722019, 988026, 1444038, 3128749, 6257498, 9386247, 18772494]

約数ペア:

[(1, 18772494), (2, 9386247), (3, 6257498), (6, 3128749), (13, 1444038), (19, 988026), (26, 722019), (38, 494013), (39, 481346), (53, 354198), (57, 329342), (78, 240673), (106, 177099), (114, 164671), (159, 118066), (239, 78546), (247, 76002), (318, 59033), (478, 39273), (494, 38001), (689, 27246), (717, 26182), (741, 25334), (1007, 18642), (1378, 13623), (1434, 13091), (1482, 12667), (2014, 9321), (2067, 9082), (3021, 6214), (3107, 6042), (4134, 4541)]