20737178

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^2$

素因数の和:215

約数の個数: 48

約数和(自身を含む): 41529024

約数和(自身を除く): 20791846

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 77, 89, 119, 154, 178, 187, 238, 374, 623, 979, 1246, 1309, 1513, 1958, 2618, 3026, 6853, 7921, 10591, 13706, 15842, 16643, 21182, 33286, 55447, 87131, 110894, 116501, 134657, 174262, 233002, 269314, 609917, 942599, 1219834, 1481227, 1885198, 2962454, 10368589, 20737178]

約数ペア:

[(1, 20737178), (2, 10368589), (7, 2962454), (11, 1885198), (14, 1481227), (17, 1219834), (22, 942599), (34, 609917), (77, 269314), (89, 233002), (119, 174262), (154, 134657), (178, 116501), (187, 110894), (238, 87131), (374, 55447), (623, 33286), (979, 21182), (1246, 16643), (1309, 15842), (1513, 13706), (1958, 10591), (2618, 7921), (3026, 6853)]