21163112

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 23160088

約数列:

[1, 2, 4, 8, 19, 37, 38, 53, 71, 74, 76, 106, 142, 148, 152, 212, 284, 296, 424, 568, 703, 1007, 1349, 1406, 1961, 2014, 2627, 2698, 2812, 3763, 3922, 4028, 5254, 5396, 5624, 7526, 7844, 8056, 10508, 10792, 15052, 15688, 21016, 30104, 37259, 49913, 71497, 74518, 99826, 139231, 142994, 149036, 199652, 278462, 285988, 298072, 399304, 556924, 571976, 1113848, 2645389, 5290778, 10581556, 21163112]

約数ペア:

[(1, 21163112), (2, 10581556), (4, 5290778), (8, 2645389), (19, 1113848), (37, 571976), (38, 556924), (53, 399304), (71, 298072), (74, 285988), (76, 278462), (106, 199652), (142, 149036), (148, 142994), (152, 139231), (212, 99826), (284, 74518), (296, 71497), (424, 49913), (568, 37259), (703, 30104), (1007, 21016), (1349, 15688), (1406, 15052), (1961, 10792), (2014, 10508), (2627, 8056), (2698, 7844), (2812, 7526), (3763, 5624), (3922, 5396), (4028, 5254)]