20783835

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{467}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 38548224

約数和(自身を除く): 17764389

約数列:

[1, 3, 5, 9, 15, 23, 43, 45, 69, 115, 129, 207, 215, 345, 387, 467, 645, 989, 1035, 1401, 1935, 2335, 2967, 4203, 4945, 7005, 8901, 10741, 14835, 20081, 21015, 32223, 44505, 53705, 60243, 96669, 100405, 161115, 180729, 301215, 461863, 483345, 903645, 1385589, 2309315, 4156767, 6927945, 20783835]

約数ペア:

[(1, 20783835), (3, 6927945), (5, 4156767), (9, 2309315), (15, 1385589), (23, 903645), (43, 483345), (45, 461863), (69, 301215), (115, 180729), (129, 161115), (207, 100405), (215, 96669), (345, 60243), (387, 53705), (467, 44505), (645, 32223), (989, 21015), (1035, 20081), (1401, 14835), (1935, 10741), (2335, 8901), (2967, 7005), (4203, 4945)]