21990959984

素因数分解:

$2^4\times 7^1\times {\mathrm{5197}}^1\times {\mathrm{37781}}^1$

素因数の和:42993

約数の個数: 40

約数和(自身を含む): 48704927328

約数和(自身を除く): 26713967344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 5197, 10394, 20788, 36379, 37781, 41576, 72758, 75562, 83152, 145516, 151124, 264467, 291032, 302248, 528934, 582064, 604496, 1057868, 2115736, 4231472, 196347857, 392695714, 785391428, 1374434999, 1570782856, 2748869998, 3141565712, 5497739996, 10995479992, 21990959984]

約数ペア:

[(1, 21990959984), (2, 10995479992), (4, 5497739996), (7, 3141565712), (8, 2748869998), (14, 1570782856), (16, 1374434999), (28, 785391428), (56, 392695714), (112, 196347857), (5197, 4231472), (10394, 2115736), (20788, 1057868), (36379, 604496), (37781, 582064), (41576, 528934), (72758, 302248), (75562, 291032), (83152, 264467), (145516, 151124)]