21967875

素因数分解:

$3^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 42531840

約数和(自身を除く): 20563965

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 115, 125, 135, 207, 225, 283, 345, 375, 575, 621, 675, 849, 1035, 1125, 1415, 1725, 2547, 2875, 3105, 3375, 4245, 5175, 6509, 7075, 7641, 8625, 12735, 15525, 19527, 21225, 25875, 32545, 35375, 38205, 58581, 63675, 77625, 97635, 106125, 162725, 175743, 191025, 292905, 318375, 488175, 813625, 878715, 955125, 1464525, 2440875, 4393575, 7322625, 21967875]

約数ペア:

[(1, 21967875), (3, 7322625), (5, 4393575), (9, 2440875), (15, 1464525), (23, 955125), (25, 878715), (27, 813625), (45, 488175), (69, 318375), (75, 292905), (115, 191025), (125, 175743), (135, 162725), (207, 106125), (225, 97635), (283, 77625), (345, 63675), (375, 58581), (575, 38205), (621, 35375), (675, 32545), (849, 25875), (1035, 21225), (1125, 19527), (1415, 15525), (1725, 12735), (2547, 8625), (2875, 7641), (3105, 7075), (3375, 6509), (4245, 5175)]