81956847

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{1327}}^1$

素因数の和:1527

約数の個数: 32

約数和(自身を含む): 133097472

約数和(自身を除く): 51140625

約数列:

[1, 3, 7, 17, 21, 51, 119, 173, 357, 519, 1211, 1327, 2941, 3633, 3981, 8823, 9289, 20587, 22559, 27867, 61761, 67677, 157913, 229571, 473739, 688713, 1606997, 3902707, 4820991, 11708121, 27318949, 81956847]

約数ペア:

[(1, 81956847), (3, 27318949), (7, 11708121), (17, 4820991), (21, 3902707), (51, 1606997), (119, 688713), (173, 473739), (357, 229571), (519, 157913), (1211, 67677), (1327, 61761), (2941, 27867), (3633, 22559), (3981, 20587), (8823, 9289)]