20517722

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:242

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 12659878

約数列:

[1, 2, 31, 59, 62, 71, 79, 118, 142, 158, 1829, 2201, 2449, 3658, 4189, 4402, 4661, 4898, 5609, 8378, 9322, 11218, 129859, 144491, 173879, 259718, 288982, 330931, 347758, 661862, 10258861, 20517722]

約数ペア:

[(1, 20517722), (2, 10258861), (31, 661862), (59, 347758), (62, 330931), (71, 288982), (79, 259718), (118, 173879), (142, 144491), (158, 129859), (1829, 11218), (2201, 9322), (2449, 8378), (3658, 5609), (4189, 4898), (4402, 4661)]