21284348560

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5660731}}^1$

素因数の和:5660791

約数の個数: 40

約数和(自身を含む): 50539015296

約数和(自身を除く): 29254666736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 5660731, 11321462, 22642924, 28303655, 45285848, 56607310, 90571696, 113214620, 226429240, 266054357, 452858480, 532108714, 1064217428, 1330271785, 2128434856, 2660543570, 4256869712, 5321087140, 10642174280, 21284348560]

約数ペア:

[(1, 21284348560), (2, 10642174280), (4, 5321087140), (5, 4256869712), (8, 2660543570), (10, 2128434856), (16, 1330271785), (20, 1064217428), (40, 532108714), (47, 452858480), (80, 266054357), (94, 226429240), (188, 113214620), (235, 90571696), (376, 56607310), (470, 45285848), (752, 28303655), (940, 22642924), (1880, 11321462), (3760, 5660731)]