21132160

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 128

約数和(自身を含む): 59486400

約数和(自身を除く): 38354240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 53, 56, 64, 70, 80, 89, 106, 112, 128, 140, 160, 178, 212, 224, 265, 280, 320, 356, 371, 424, 445, 448, 530, 560, 623, 640, 712, 742, 848, 890, 896, 1060, 1120, 1246, 1424, 1484, 1696, 1780, 1855, 2120, 2240, 2492, 2848, 2968, 3115, 3392, 3560, 3710, 4240, 4480, 4717, 4984, 5696, 5936, 6230, 6784, 7120, 7420, 8480, 9434, 9968, 11392, 11872, 12460, 14240, 14840, 16960, 18868, 19936, 23585, 23744, 24920, 28480, 29680, 33019, 33920, 37736, 39872, 47170, 47488, 49840, 56960, 59360, 66038, 75472, 79744, 94340, 99680, 118720, 132076, 150944, 165095, 188680, 199360, 237440, 264152, 301888, 330190, 377360, 398720, 528304, 603776, 660380, 754720, 1056608, 1320760, 1509440, 2113216, 2641520, 3018880, 4226432, 5283040, 10566080, 21132160]

約数ペア:

[(1, 21132160), (2, 10566080), (4, 5283040), (5, 4226432), (7, 3018880), (8, 2641520), (10, 2113216), (14, 1509440), (16, 1320760), (20, 1056608), (28, 754720), (32, 660380), (35, 603776), (40, 528304), (53, 398720), (56, 377360), (64, 330190), (70, 301888), (80, 264152), (89, 237440), (106, 199360), (112, 188680), (128, 165095), (140, 150944), (160, 132076), (178, 118720), (212, 99680), (224, 94340), (265, 79744), (280, 75472), (320, 66038), (356, 59360), (371, 56960), (424, 49840), (445, 47488), (448, 47170), (530, 39872), (560, 37736), (623, 33920), (640, 33019), (712, 29680), (742, 28480), (848, 24920), (890, 23744), (896, 23585), (1060, 19936), (1120, 18868), (1246, 16960), (1424, 14840), (1484, 14240), (1696, 12460), (1780, 11872), (1855, 11392), (2120, 9968), (2240, 9434), (2492, 8480), (2848, 7420), (2968, 7120), (3115, 6784), (3392, 6230), (3560, 5936), (3710, 5696), (4240, 4984), (4480, 4717)]