21009360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87539}}^1$

素因数の和:87555

約数の個数: 40

約数和(自身を含む): 65129760

約数和(自身を除く): 44120400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87539, 175078, 262617, 350156, 437695, 525234, 700312, 875390, 1050468, 1313085, 1400624, 1750780, 2100936, 2626170, 3501560, 4201872, 5252340, 7003120, 10504680, 21009360]

約数ペア:

[(1, 21009360), (2, 10504680), (3, 7003120), (4, 5252340), (5, 4201872), (6, 3501560), (8, 2626170), (10, 2100936), (12, 1750780), (15, 1400624), (16, 1313085), (20, 1050468), (24, 875390), (30, 700312), (40, 525234), (48, 437695), (60, 350156), (80, 262617), (120, 175078), (240, 87539)]