21617958

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:648

約数の個数: 32

約数和(自身を含む): 44434656

約数和(自身を除く): 22816698

約数列:

[1, 2, 3, 6, 53, 106, 157, 159, 314, 318, 433, 471, 866, 942, 1299, 2598, 8321, 16642, 22949, 24963, 45898, 49926, 67981, 68847, 135962, 137694, 203943, 407886, 3602993, 7205986, 10808979, 21617958]

約数ペア:

[(1, 21617958), (2, 10808979), (3, 7205986), (6, 3602993), (53, 407886), (106, 203943), (157, 137694), (159, 135962), (314, 68847), (318, 67981), (433, 49926), (471, 45898), (866, 24963), (942, 22949), (1299, 16642), (2598, 8321)]