21492075

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 39283200

約数和(自身を除く): 17791125

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 109, 165, 239, 275, 327, 545, 717, 825, 1195, 1199, 1635, 2629, 2725, 3585, 3597, 5975, 5995, 7887, 8175, 13145, 17925, 17985, 26051, 29975, 39435, 65725, 78153, 89925, 130255, 197175, 286561, 390765, 651275, 859683, 1432805, 1953825, 4298415, 7164025, 21492075]

約数ペア:

[(1, 21492075), (3, 7164025), (5, 4298415), (11, 1953825), (15, 1432805), (25, 859683), (33, 651275), (55, 390765), (75, 286561), (109, 197175), (165, 130255), (239, 89925), (275, 78153), (327, 65725), (545, 39435), (717, 29975), (825, 26051), (1195, 17985), (1199, 17925), (1635, 13145), (2629, 8175), (2725, 7887), (3585, 5995), (3597, 5975)]