21801920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9733}}^1$

素因数の和:9757

約数の個数: 56

約数和(自身を含む): 59338464

約数和(自身を除く): 37536544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9733, 19466, 38932, 48665, 68131, 77864, 97330, 136262, 155728, 194660, 272524, 311456, 340655, 389320, 545048, 622912, 681310, 778640, 1090096, 1362620, 1557280, 2180192, 2725240, 3114560, 4360384, 5450480, 10900960, 21801920]

約数ペア:

[(1, 21801920), (2, 10900960), (4, 5450480), (5, 4360384), (7, 3114560), (8, 2725240), (10, 2180192), (14, 1557280), (16, 1362620), (20, 1090096), (28, 778640), (32, 681310), (35, 622912), (40, 545048), (56, 389320), (64, 340655), (70, 311456), (80, 272524), (112, 194660), (140, 155728), (160, 136262), (224, 97330), (280, 77864), (320, 68131), (448, 48665), (560, 38932), (1120, 19466), (2240, 9733)]