19419728

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{467}}^1$

素因数の和:611

約数の個数: 40

約数和(自身を含む): 39693888

約数和(自身を除く): 20274160

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 113, 184, 226, 368, 452, 467, 904, 934, 1808, 1868, 2599, 3736, 5198, 7472, 10396, 10741, 20792, 21482, 41584, 42964, 52771, 85928, 105542, 171856, 211084, 422168, 844336, 1213733, 2427466, 4854932, 9709864, 19419728]

約数ペア:

[(1, 19419728), (2, 9709864), (4, 4854932), (8, 2427466), (16, 1213733), (23, 844336), (46, 422168), (92, 211084), (113, 171856), (184, 105542), (226, 85928), (368, 52771), (452, 42964), (467, 41584), (904, 21482), (934, 20792), (1808, 10741), (1868, 10396), (2599, 7472), (3736, 5198)]