21308320

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12107}}^1$

素因数の和:12133

約数の個数: 48

約数和(自身を含む): 54921888

約数和(自身を除く): 33613568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 12107, 24214, 48428, 60535, 96856, 121070, 133177, 193712, 242140, 266354, 387424, 484280, 532708, 665885, 968560, 1065416, 1331770, 1937120, 2130832, 2663540, 4261664, 5327080, 10654160, 21308320]

約数ペア:

[(1, 21308320), (2, 10654160), (4, 5327080), (5, 4261664), (8, 2663540), (10, 2130832), (11, 1937120), (16, 1331770), (20, 1065416), (22, 968560), (32, 665885), (40, 532708), (44, 484280), (55, 387424), (80, 266354), (88, 242140), (110, 193712), (160, 133177), (176, 121070), (220, 96856), (352, 60535), (440, 48428), (880, 24214), (1760, 12107)]