21709872

素因数分解:

$2^4\times 3^2\times {\mathrm{107}}^1\times {\mathrm{1409}}^1$

素因数の和:1530

約数の個数: 60

約数和(自身を含む): 61368840

約数和(自身を除く): 39658968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 107, 144, 214, 321, 428, 642, 856, 963, 1284, 1409, 1712, 1926, 2568, 2818, 3852, 4227, 5136, 5636, 7704, 8454, 11272, 12681, 15408, 16908, 22544, 25362, 33816, 50724, 67632, 101448, 150763, 202896, 301526, 452289, 603052, 904578, 1206104, 1356867, 1809156, 2412208, 2713734, 3618312, 5427468, 7236624, 10854936, 21709872]

約数ペア:

[(1, 21709872), (2, 10854936), (3, 7236624), (4, 5427468), (6, 3618312), (8, 2713734), (9, 2412208), (12, 1809156), (16, 1356867), (18, 1206104), (24, 904578), (36, 603052), (48, 452289), (72, 301526), (107, 202896), (144, 150763), (214, 101448), (321, 67632), (428, 50724), (642, 33816), (856, 25362), (963, 22544), (1284, 16908), (1409, 15408), (1712, 12681), (1926, 11272), (2568, 8454), (2818, 7704), (3852, 5636), (4227, 5136)]