19964715

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1327}}^1$

素因数の和:1411

約数の個数: 32

約数和(自身を含む): 34421760

約数和(自身を除く): 14457045

約数列:

[1, 3, 5, 15, 17, 51, 59, 85, 177, 255, 295, 885, 1003, 1327, 3009, 3981, 5015, 6635, 15045, 19905, 22559, 67677, 78293, 112795, 234879, 338385, 391465, 1174395, 1330981, 3992943, 6654905, 19964715]

約数ペア:

[(1, 19964715), (3, 6654905), (5, 3992943), (15, 1330981), (17, 1174395), (51, 391465), (59, 338385), (85, 234879), (177, 112795), (255, 78293), (295, 67677), (885, 22559), (1003, 19905), (1327, 15045), (3009, 6635), (3981, 5015)]