21939408

素因数分解:

$2^4\times 3^2\times {\mathrm{251}}^1\times {\mathrm{607}}^1$

素因数の和:872

約数の個数: 60

約数和(自身を含む): 61746048

約数和(自身を除く): 39806640

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 251, 502, 607, 753, 1004, 1214, 1506, 1821, 2008, 2259, 2428, 3012, 3642, 4016, 4518, 4856, 5463, 6024, 7284, 9036, 9712, 10926, 12048, 14568, 18072, 21852, 29136, 36144, 43704, 87408, 152357, 304714, 457071, 609428, 914142, 1218856, 1371213, 1828284, 2437712, 2742426, 3656568, 5484852, 7313136, 10969704, 21939408]

約数ペア:

[(1, 21939408), (2, 10969704), (3, 7313136), (4, 5484852), (6, 3656568), (8, 2742426), (9, 2437712), (12, 1828284), (16, 1371213), (18, 1218856), (24, 914142), (36, 609428), (48, 457071), (72, 304714), (144, 152357), (251, 87408), (502, 43704), (607, 36144), (753, 29136), (1004, 21852), (1214, 18072), (1506, 14568), (1821, 12048), (2008, 10926), (2259, 9712), (2428, 9036), (3012, 7284), (3642, 6024), (4016, 5463), (4518, 4856)]