19355908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 42426720

約数和(自身を除く): 23070812

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 44, 52, 76, 137, 143, 169, 209, 247, 274, 286, 338, 418, 494, 548, 572, 676, 836, 988, 1507, 1781, 1859, 2603, 2717, 3014, 3211, 3562, 3718, 5206, 5434, 6028, 6422, 7124, 7436, 10412, 10868, 12844, 19591, 23153, 28633, 33839, 35321, 39182, 46306, 57266, 67678, 70642, 78364, 92612, 114532, 135356, 141284, 254683, 372229, 439907, 509366, 744458, 879814, 1018732, 1488916, 1759628, 4838977, 9677954, 19355908]

約数ペア:

[(1, 19355908), (2, 9677954), (4, 4838977), (11, 1759628), (13, 1488916), (19, 1018732), (22, 879814), (26, 744458), (38, 509366), (44, 439907), (52, 372229), (76, 254683), (137, 141284), (143, 135356), (169, 114532), (209, 92612), (247, 78364), (274, 70642), (286, 67678), (338, 57266), (418, 46306), (494, 39182), (548, 35321), (572, 33839), (676, 28633), (836, 23153), (988, 19591), (1507, 12844), (1781, 10868), (1859, 10412), (2603, 7436), (2717, 7124), (3014, 6422), (3211, 6028), (3562, 5434), (3718, 5206)]