19209388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 39559968

約数和(自身を除く): 20350580

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 61, 68, 122, 187, 244, 374, 421, 671, 748, 842, 1037, 1342, 1684, 2074, 2684, 4148, 4631, 7157, 9262, 11407, 14314, 18524, 22814, 25681, 28628, 45628, 51362, 78727, 102724, 157454, 282491, 314908, 436577, 564982, 873154, 1129964, 1746308, 4802347, 9604694, 19209388]

約数ペア:

[(1, 19209388), (2, 9604694), (4, 4802347), (11, 1746308), (17, 1129964), (22, 873154), (34, 564982), (44, 436577), (61, 314908), (68, 282491), (122, 157454), (187, 102724), (244, 78727), (374, 51362), (421, 45628), (671, 28628), (748, 25681), (842, 22814), (1037, 18524), (1342, 14314), (1684, 11407), (2074, 9262), (2684, 7157), (4148, 4631)]