21082516

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3407}}^1$

素因数の和:3448

約数の個数: 48

約数和(自身を含む): 48093696

約数和(自身を除く): 27011180

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 221, 238, 364, 442, 476, 884, 1547, 3094, 3407, 6188, 6814, 13628, 23849, 44291, 47698, 57919, 88582, 95396, 115838, 177164, 231676, 310037, 405433, 620074, 752947, 810866, 1240148, 1505894, 1621732, 3011788, 5270629, 10541258, 21082516]

約数ペア:

[(1, 21082516), (2, 10541258), (4, 5270629), (7, 3011788), (13, 1621732), (14, 1505894), (17, 1240148), (26, 810866), (28, 752947), (34, 620074), (52, 405433), (68, 310037), (91, 231676), (119, 177164), (182, 115838), (221, 95396), (238, 88582), (364, 57919), (442, 47698), (476, 44291), (884, 23849), (1547, 13628), (3094, 6814), (3407, 6188)]