16987256

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 21719944

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 31, 44, 52, 62, 88, 104, 124, 143, 248, 286, 341, 403, 479, 572, 682, 806, 958, 1144, 1364, 1612, 1916, 2728, 3224, 3832, 4433, 5269, 6227, 8866, 10538, 12454, 14849, 17732, 21076, 24908, 29698, 35464, 42152, 49816, 59396, 68497, 118792, 136994, 163339, 193037, 273988, 326678, 386074, 547976, 653356, 772148, 1306712, 1544296, 2123407, 4246814, 8493628, 16987256]

約数ペア:

[(1, 16987256), (2, 8493628), (4, 4246814), (8, 2123407), (11, 1544296), (13, 1306712), (22, 772148), (26, 653356), (31, 547976), (44, 386074), (52, 326678), (62, 273988), (88, 193037), (104, 163339), (124, 136994), (143, 118792), (248, 68497), (286, 59396), (341, 49816), (403, 42152), (479, 35464), (572, 29698), (682, 24908), (806, 21076), (958, 17732), (1144, 14849), (1364, 12454), (1612, 10538), (1916, 8866), (2728, 6227), (3224, 5269), (3832, 4433)]