21727520

素因数分解:

$2^5\times 5^1\times {\mathrm{229}}^1\times {\mathrm{593}}^1$

素因数の和:837

約数の個数: 48

約数和(自身を含む): 51642360

約数和(自身を除く): 29914840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 229, 458, 593, 916, 1145, 1186, 1832, 2290, 2372, 2965, 3664, 4580, 4744, 5930, 7328, 9160, 9488, 11860, 18320, 18976, 23720, 36640, 47440, 94880, 135797, 271594, 543188, 678985, 1086376, 1357970, 2172752, 2715940, 4345504, 5431880, 10863760, 21727520]

約数ペア:

[(1, 21727520), (2, 10863760), (4, 5431880), (5, 4345504), (8, 2715940), (10, 2172752), (16, 1357970), (20, 1086376), (32, 678985), (40, 543188), (80, 271594), (160, 135797), (229, 94880), (458, 47440), (593, 36640), (916, 23720), (1145, 18976), (1186, 18320), (1832, 11860), (2290, 9488), (2372, 9160), (2965, 7328), (3664, 5930), (4580, 4744)]