21832520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1249}}^1$

素因数の和:1302

約数の個数: 64

約数和(自身を含む): 54000000

約数和(自身を除く): 32167480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 115, 152, 184, 190, 230, 380, 437, 460, 760, 874, 920, 1249, 1748, 2185, 2498, 3496, 4370, 4996, 6245, 8740, 9992, 12490, 17480, 23731, 24980, 28727, 47462, 49960, 57454, 94924, 114908, 118655, 143635, 189848, 229816, 237310, 287270, 474620, 545813, 574540, 949240, 1091626, 1149080, 2183252, 2729065, 4366504, 5458130, 10916260, 21832520]

約数ペア:

[(1, 21832520), (2, 10916260), (4, 5458130), (5, 4366504), (8, 2729065), (10, 2183252), (19, 1149080), (20, 1091626), (23, 949240), (38, 574540), (40, 545813), (46, 474620), (76, 287270), (92, 237310), (95, 229816), (115, 189848), (152, 143635), (184, 118655), (190, 114908), (230, 94924), (380, 57454), (437, 49960), (460, 47462), (760, 28727), (874, 24980), (920, 23731), (1249, 17480), (1748, 12490), (2185, 9992), (2498, 8740), (3496, 6245), (4370, 4996)]