21326432

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 44906400

約数和(自身を除く): 23579968

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 197, 199, 272, 394, 398, 544, 788, 796, 1576, 1592, 3152, 3184, 3349, 3383, 6304, 6368, 6698, 6766, 13396, 13532, 26792, 27064, 39203, 53584, 54128, 78406, 107168, 108256, 156812, 313624, 627248, 666451, 1254496, 1332902, 2665804, 5331608, 10663216, 21326432]

約数ペア:

[(1, 21326432), (2, 10663216), (4, 5331608), (8, 2665804), (16, 1332902), (17, 1254496), (32, 666451), (34, 627248), (68, 313624), (136, 156812), (197, 108256), (199, 107168), (272, 78406), (394, 54128), (398, 53584), (544, 39203), (788, 27064), (796, 26792), (1576, 13532), (1592, 13396), (3152, 6766), (3184, 6698), (3349, 6368), (3383, 6304)]