19847704

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7681}}^1$

素因数の和:7723

約数の個数: 32

約数和(自身を含む): 41482800

約数和(自身を除く): 21635096

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 7681, 15362, 30724, 61448, 130577, 145939, 261154, 291878, 522308, 583756, 1044616, 1167512, 2480963, 4961926, 9923852, 19847704]

約数ペア:

[(1, 19847704), (2, 9923852), (4, 4961926), (8, 2480963), (17, 1167512), (19, 1044616), (34, 583756), (38, 522308), (68, 291878), (76, 261154), (136, 145939), (152, 130577), (323, 61448), (646, 30724), (1292, 15362), (2584, 7681)]