21150560

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1973}}^1$

素因数の和:2055

約数の個数: 48

約数和(自身を含む): 50739696

約数和(自身を除く): 29589136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 1973, 2144, 2680, 3946, 5360, 7892, 9865, 10720, 15784, 19730, 31568, 39460, 63136, 78920, 132191, 157840, 264382, 315680, 528764, 660955, 1057528, 1321910, 2115056, 2643820, 4230112, 5287640, 10575280, 21150560]

約数ペア:

[(1, 21150560), (2, 10575280), (4, 5287640), (5, 4230112), (8, 2643820), (10, 2115056), (16, 1321910), (20, 1057528), (32, 660955), (40, 528764), (67, 315680), (80, 264382), (134, 157840), (160, 132191), (268, 78920), (335, 63136), (536, 39460), (670, 31568), (1072, 19730), (1340, 15784), (1973, 10720), (2144, 9865), (2680, 7892), (3946, 5360)]