211231341

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{457}}^1$

素因数の和:555

約数の個数: 64

約数和(自身を含む): 356140800

約数和(自身を除く): 144909459

約数列:

[1, 3, 9, 17, 19, 27, 51, 53, 57, 153, 159, 171, 323, 457, 459, 477, 513, 901, 969, 1007, 1371, 1431, 2703, 2907, 3021, 4113, 7769, 8109, 8683, 8721, 9063, 12339, 17119, 23307, 24221, 24327, 26049, 27189, 51357, 69921, 72663, 78147, 147611, 154071, 209763, 217989, 234441, 411757, 442833, 460199, 462213, 653967, 1235271, 1328499, 1380597, 3705813, 3985497, 4141791, 7823383, 11117439, 12425373, 23470149, 70410447, 211231341]

約数ペア:

[(1, 211231341), (3, 70410447), (9, 23470149), (17, 12425373), (19, 11117439), (27, 7823383), (51, 4141791), (53, 3985497), (57, 3705813), (153, 1380597), (159, 1328499), (171, 1235271), (323, 653967), (457, 462213), (459, 460199), (477, 442833), (513, 411757), (901, 234441), (969, 217989), (1007, 209763), (1371, 154071), (1431, 147611), (2703, 78147), (2907, 72663), (3021, 69921), (4113, 51357), (7769, 27189), (8109, 26049), (8683, 24327), (8721, 24221), (9063, 23307), (12339, 17119)]