201225409

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:459

約数の個数: 40

約数和(自身を含む): 270240480

約数和(自身を除く): 69015071

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 343, 401, 539, 931, 1463, 2401, 2807, 3773, 4411, 6517, 7619, 10241, 19649, 26411, 30877, 45619, 53333, 71687, 83809, 137543, 216139, 373331, 501809, 586663, 962801, 1512973, 2613317, 4106641, 10590811, 18293219, 28746487, 201225409]

約数ペア:

[(1, 201225409), (7, 28746487), (11, 18293219), (19, 10590811), (49, 4106641), (77, 2613317), (133, 1512973), (209, 962801), (343, 586663), (401, 501809), (539, 373331), (931, 216139), (1463, 137543), (2401, 83809), (2807, 71687), (3773, 53333), (4411, 45619), (6517, 30877), (7619, 26411), (10241, 19649)]