21885075

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4229}}^1$

素因数の和:4268

約数の個数: 36

約数和(自身を含む): 40912560

約数和(自身を除く): 19027485

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 4229, 5175, 12687, 21145, 38061, 63435, 97267, 105725, 190305, 291801, 317175, 486335, 875403, 951525, 1459005, 2431675, 4377015, 7295025, 21885075]

約数ペア:

[(1, 21885075), (3, 7295025), (5, 4377015), (9, 2431675), (15, 1459005), (23, 951525), (25, 875403), (45, 486335), (69, 317175), (75, 291801), (115, 190305), (207, 105725), (225, 97267), (345, 63435), (575, 38061), (1035, 21145), (1725, 12687), (4229, 5175)]