19541823

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 34467840

約数和(自身を除く): 14926017

約数列:

[1, 3, 7, 17, 19, 21, 43, 51, 57, 67, 119, 129, 133, 201, 301, 323, 357, 399, 469, 731, 817, 903, 969, 1139, 1273, 1407, 2193, 2261, 2451, 2881, 3417, 3819, 5117, 5719, 6783, 7973, 8643, 8911, 13889, 15351, 17157, 20167, 21641, 23919, 26733, 41667, 48977, 54739, 60501, 64923, 97223, 146931, 151487, 164217, 291669, 342839, 383173, 454461, 930563, 1028517, 1149519, 2791689, 6513941, 19541823]

約数ペア:

[(1, 19541823), (3, 6513941), (7, 2791689), (17, 1149519), (19, 1028517), (21, 930563), (43, 454461), (51, 383173), (57, 342839), (67, 291669), (119, 164217), (129, 151487), (133, 146931), (201, 97223), (301, 64923), (323, 60501), (357, 54739), (399, 48977), (469, 41667), (731, 26733), (817, 23919), (903, 21641), (969, 20167), (1139, 17157), (1273, 15351), (1407, 13889), (2193, 8911), (2261, 8643), (2451, 7973), (2881, 6783), (3417, 5719), (3819, 5117)]