21179330

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:598

約数の個数: 32

約数和(自身を含む): 39366000

約数和(自身を除く): 18186670

約数列:

[1, 2, 5, 10, 53, 89, 106, 178, 265, 445, 449, 530, 890, 898, 2245, 4490, 4717, 9434, 23585, 23797, 39961, 47170, 47594, 79922, 118985, 199805, 237970, 399610, 2117933, 4235866, 10589665, 21179330]

約数ペア:

[(1, 21179330), (2, 10589665), (5, 4235866), (10, 2117933), (53, 399610), (89, 237970), (106, 199805), (178, 118985), (265, 79922), (445, 47594), (449, 47170), (530, 39961), (890, 23797), (898, 23585), (2245, 9434), (4490, 4717)]