172638417

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 290304000

約数和(自身を除く): 117665583

約数列:

[1, 3, 7, 17, 21, 49, 51, 71, 119, 139, 147, 213, 343, 357, 417, 497, 833, 973, 1029, 1207, 1491, 2363, 2499, 2919, 3479, 3621, 5831, 6811, 7089, 8449, 9869, 10437, 16541, 17493, 20433, 24353, 25347, 29607, 47677, 49623, 59143, 69083, 73059, 115787, 143031, 167773, 177429, 207249, 347361, 414001, 483581, 503319, 810509, 1174411, 1242003, 1450743, 2431527, 3385067, 3523233, 8220877, 10155201, 24662631, 57546139, 172638417]

約数ペア:

[(1, 172638417), (3, 57546139), (7, 24662631), (17, 10155201), (21, 8220877), (49, 3523233), (51, 3385067), (71, 2431527), (119, 1450743), (139, 1242003), (147, 1174411), (213, 810509), (343, 503319), (357, 483581), (417, 414001), (497, 347361), (833, 207249), (973, 177429), (1029, 167773), (1207, 143031), (1491, 115787), (2363, 73059), (2499, 69083), (2919, 59143), (3479, 49623), (3621, 47677), (5831, 29607), (6811, 25347), (7089, 24353), (8449, 20433), (9869, 17493), (10437, 16541)]