21163411820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2421443}}^1$

素因数の和:2421494

約数の個数: 48

約数和(自身を含む): 48816311040

約数和(自身を除く): 27652899220

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 2185, 4370, 8740, 2421443, 4842886, 9685772, 12107215, 24214430, 46007417, 48428860, 55693189, 92014834, 111386378, 184029668, 222772756, 230037085, 278465945, 460074170, 556931890, 920148340, 1058170591, 1113863780, 2116341182, 4232682364, 5290852955, 10581705910, 21163411820]

約数ペア:

[(1, 21163411820), (2, 10581705910), (4, 5290852955), (5, 4232682364), (10, 2116341182), (19, 1113863780), (20, 1058170591), (23, 920148340), (38, 556931890), (46, 460074170), (76, 278465945), (92, 230037085), (95, 222772756), (115, 184029668), (190, 111386378), (230, 92014834), (380, 55693189), (437, 48428860), (460, 46007417), (874, 24214430), (1748, 12107215), (2185, 9685772), (4370, 4842886), (8740, 2421443)]