217231605

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{55487}}^1$

素因数の和:55530

約数の個数: 32

約数和(自身を含む): 399513600

約数和(自身を除く): 182281995

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 55487, 166461, 277435, 499383, 832305, 1498149, 1609123, 2496915, 4827369, 7490745, 8045615, 14482107, 24136845, 43446321, 72410535, 217231605]

約数ペア:

[(1, 217231605), (3, 72410535), (5, 43446321), (9, 24136845), (15, 14482107), (27, 8045615), (29, 7490745), (45, 4827369), (87, 2496915), (135, 1609123), (145, 1498149), (261, 832305), (435, 499383), (783, 277435), (1305, 166461), (3915, 55487)]