42781618

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:594

約数の個数: 32

約数和(自身を含む): 72316800

約数和(自身を除く): 29535182

約数列:

[1, 2, 11, 22, 61, 71, 122, 142, 449, 671, 781, 898, 1342, 1562, 4331, 4939, 8662, 9878, 27389, 31879, 47641, 54778, 63758, 95282, 301279, 350669, 602558, 701338, 1944619, 3889238, 21390809, 42781618]

約数ペア:

[(1, 42781618), (2, 21390809), (11, 3889238), (22, 1944619), (61, 701338), (71, 602558), (122, 350669), (142, 301279), (449, 95282), (671, 63758), (781, 54778), (898, 47641), (1342, 31879), (1562, 27389), (4331, 9878), (4939, 8662)]