21090691765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{270619}}^1$

素因数の和:270757

約数の個数: 32

約数和(自身を含む): 30006345600

約数和(自身を除く): 8915653835

約数列:

[1, 5, 11, 13, 55, 65, 109, 143, 545, 715, 1199, 1417, 5995, 7085, 15587, 77935, 270619, 1353095, 2976809, 3518047, 14884045, 17590235, 29497471, 38698517, 147487355, 193492585, 324472181, 383467123, 1622360905, 1917335615, 4218138353, 21090691765]

約数ペア:

[(1, 21090691765), (5, 4218138353), (11, 1917335615), (13, 1622360905), (55, 383467123), (65, 324472181), (109, 193492585), (143, 147487355), (545, 38698517), (715, 29497471), (1199, 17590235), (1417, 14884045), (5995, 3518047), (7085, 2976809), (15587, 1353095), (77935, 270619)]