21354090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{523}}^1\times {\mathrm{1361}}^1$

素因数の和:1894

約数の個数: 32

約数和(自身を含む): 51385536

約数和(自身を除く): 30031446

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 523, 1046, 1361, 1569, 2615, 2722, 3138, 4083, 5230, 6805, 7845, 8166, 13610, 15690, 20415, 40830, 711803, 1423606, 2135409, 3559015, 4270818, 7118030, 10677045, 21354090]

約数ペア:

[(1, 21354090), (2, 10677045), (3, 7118030), (5, 4270818), (6, 3559015), (10, 2135409), (15, 1423606), (30, 711803), (523, 40830), (1046, 20415), (1361, 15690), (1569, 13610), (2615, 8166), (2722, 7845), (3138, 6805), (4083, 5230)]