21239928

素因数分解:

$2^3\times 3^3\times {\mathrm{107}}^1\times {\mathrm{919}}^1$

素因数の和:1041

約数の個数: 64

約数和(自身を含む): 59616000

約数和(自身を除く): 38376072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 107, 108, 214, 216, 321, 428, 642, 856, 919, 963, 1284, 1838, 1926, 2568, 2757, 2889, 3676, 3852, 5514, 5778, 7352, 7704, 8271, 11028, 11556, 16542, 22056, 23112, 24813, 33084, 49626, 66168, 98333, 99252, 196666, 198504, 294999, 393332, 589998, 786664, 884997, 1179996, 1769994, 2359992, 2654991, 3539988, 5309982, 7079976, 10619964, 21239928]

約数ペア:

[(1, 21239928), (2, 10619964), (3, 7079976), (4, 5309982), (6, 3539988), (8, 2654991), (9, 2359992), (12, 1769994), (18, 1179996), (24, 884997), (27, 786664), (36, 589998), (54, 393332), (72, 294999), (107, 198504), (108, 196666), (214, 99252), (216, 98333), (321, 66168), (428, 49626), (642, 33084), (856, 24813), (919, 23112), (963, 22056), (1284, 16542), (1838, 11556), (1926, 11028), (2568, 8271), (2757, 7704), (2889, 7352), (3676, 5778), (3852, 5514)]