216917865

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43427}}^1$

素因数の和:43478

約数の個数: 32

約数和(自身を含む): 396063360

約数和(自身を除く): 179145495

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4995, 43427, 130281, 217135, 390843, 651405, 1172529, 1606799, 1954215, 4820397, 5862645, 8033995, 14461191, 24101985, 43383573, 72305955, 216917865]

約数ペア:

[(1, 216917865), (3, 72305955), (5, 43383573), (9, 24101985), (15, 14461191), (27, 8033995), (37, 5862645), (45, 4820397), (111, 1954215), (135, 1606799), (185, 1172529), (333, 651405), (555, 390843), (999, 217135), (1665, 130281), (4995, 43427)]