21098820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15289}}^1$

素因数の和:15324

約数の個数: 48

約数和(自身を含む): 61649280

約数和(自身を除く): 40550460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15289, 30578, 45867, 61156, 76445, 91734, 152890, 183468, 229335, 305780, 351647, 458670, 703294, 917340, 1054941, 1406588, 1758235, 2109882, 3516470, 4219764, 5274705, 7032940, 10549410, 21098820]

約数ペア:

[(1, 21098820), (2, 10549410), (3, 7032940), (4, 5274705), (5, 4219764), (6, 3516470), (10, 2109882), (12, 1758235), (15, 1406588), (20, 1054941), (23, 917340), (30, 703294), (46, 458670), (60, 351647), (69, 305780), (92, 229335), (115, 183468), (138, 152890), (230, 91734), (276, 76445), (345, 61156), (460, 45867), (690, 30578), (1380, 15289)]