21397608

素因数分解:

$2^3\times 3^7\times {\mathrm{1223}}^1$

素因数の和:1250

約数の個数: 64

約数和(自身を含む): 60220800

約数和(自身を除く): 38823192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 729, 972, 1223, 1458, 1944, 2187, 2446, 2916, 3669, 4374, 4892, 5832, 7338, 8748, 9784, 11007, 14676, 17496, 22014, 29352, 33021, 44028, 66042, 88056, 99063, 132084, 198126, 264168, 297189, 396252, 594378, 792504, 891567, 1188756, 1783134, 2377512, 2674701, 3566268, 5349402, 7132536, 10698804, 21397608]

約数ペア:

[(1, 21397608), (2, 10698804), (3, 7132536), (4, 5349402), (6, 3566268), (8, 2674701), (9, 2377512), (12, 1783134), (18, 1188756), (24, 891567), (27, 792504), (36, 594378), (54, 396252), (72, 297189), (81, 264168), (108, 198126), (162, 132084), (216, 99063), (243, 88056), (324, 66042), (486, 44028), (648, 33021), (729, 29352), (972, 22014), (1223, 17496), (1458, 14676), (1944, 11007), (2187, 9784), (2446, 8748), (2916, 7338), (3669, 5832), (4374, 4892)]