31921197

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1039}}^1$

素因数の和:1086

約数の個数: 48

約数和(自身を含む): 56908800

約数和(自身を除く): 24987603

約数列:

[1, 3, 7, 11, 19, 21, 33, 49, 57, 77, 133, 147, 209, 231, 399, 539, 627, 931, 1039, 1463, 1617, 2793, 3117, 4389, 7273, 10241, 11429, 19741, 21819, 30723, 34287, 50911, 59223, 80003, 138187, 152733, 217151, 240009, 414561, 560021, 651453, 967309, 1520057, 1680063, 2901927, 4560171, 10640399, 31921197]

約数ペア:

[(1, 31921197), (3, 10640399), (7, 4560171), (11, 2901927), (19, 1680063), (21, 1520057), (33, 967309), (49, 651453), (57, 560021), (77, 414561), (133, 240009), (147, 217151), (209, 152733), (231, 138187), (399, 80003), (539, 59223), (627, 50911), (931, 34287), (1039, 30723), (1463, 21819), (1617, 19741), (2793, 11429), (3117, 10241), (4389, 7273)]