19971216

素因数分解:

$2^4\times 3^2\times {\mathrm{331}}^1\times {\mathrm{419}}^1$

素因数の和:764

約数の個数: 60

約数和(自身を含む): 56194320

約数和(自身を除く): 36223104

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 331, 419, 662, 838, 993, 1257, 1324, 1676, 1986, 2514, 2648, 2979, 3352, 3771, 3972, 5028, 5296, 5958, 6704, 7542, 7944, 10056, 11916, 15084, 15888, 20112, 23832, 30168, 47664, 60336, 138689, 277378, 416067, 554756, 832134, 1109512, 1248201, 1664268, 2219024, 2496402, 3328536, 4992804, 6657072, 9985608, 19971216]

約数ペア:

[(1, 19971216), (2, 9985608), (3, 6657072), (4, 4992804), (6, 3328536), (8, 2496402), (9, 2219024), (12, 1664268), (16, 1248201), (18, 1109512), (24, 832134), (36, 554756), (48, 416067), (72, 277378), (144, 138689), (331, 60336), (419, 47664), (662, 30168), (838, 23832), (993, 20112), (1257, 15888), (1324, 15084), (1676, 11916), (1986, 10056), (2514, 7944), (2648, 7542), (2979, 6704), (3352, 5958), (3771, 5296), (3972, 5028)]