28243358

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 54468288

約数和(自身を除く): 26224930

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 37, 74, 143, 157, 187, 221, 286, 314, 374, 407, 442, 481, 629, 814, 962, 1258, 1727, 2041, 2431, 2669, 3454, 4082, 4862, 5291, 5338, 5809, 6919, 8177, 10582, 11618, 13838, 16354, 22451, 29359, 34697, 44902, 58718, 63899, 69394, 75517, 89947, 98753, 127798, 151034, 179894, 197506, 381667, 763334, 830687, 1086283, 1283789, 1661374, 2172566, 2567578, 14121679, 28243358]

約数ペア:

[(1, 28243358), (2, 14121679), (11, 2567578), (13, 2172566), (17, 1661374), (22, 1283789), (26, 1086283), (34, 830687), (37, 763334), (74, 381667), (143, 197506), (157, 179894), (187, 151034), (221, 127798), (286, 98753), (314, 89947), (374, 75517), (407, 69394), (442, 63899), (481, 58718), (629, 44902), (814, 34697), (962, 29359), (1258, 22451), (1727, 16354), (2041, 13838), (2431, 11618), (2669, 10582), (3454, 8177), (4082, 6919), (4862, 5809), (5291, 5338)]