21081133568

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{47381}}^1$

素因数の和:47489

約数の個数: 80

約数和(自身を含む): 46532914560

約数和(自身を除く): 25451780992

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 79, 88, 128, 158, 176, 256, 316, 352, 512, 632, 704, 869, 1264, 1408, 1738, 2528, 2816, 3476, 5056, 5632, 6952, 10112, 13904, 20224, 27808, 40448, 47381, 55616, 94762, 111232, 189524, 222464, 379048, 444928, 521191, 758096, 1042382, 1516192, 2084764, 3032384, 3743099, 4169528, 6064768, 7486198, 8339056, 12129536, 14972396, 16678112, 24259072, 29944792, 33356224, 41174089, 59889584, 66712448, 82348178, 119779168, 133424896, 164696356, 239558336, 266849792, 329392712, 479116672, 658785424, 958233344, 1317570848, 1916466688, 2635141696, 5270283392, 10540566784, 21081133568]

約数ペア:

[(1, 21081133568), (2, 10540566784), (4, 5270283392), (8, 2635141696), (11, 1916466688), (16, 1317570848), (22, 958233344), (32, 658785424), (44, 479116672), (64, 329392712), (79, 266849792), (88, 239558336), (128, 164696356), (158, 133424896), (176, 119779168), (256, 82348178), (316, 66712448), (352, 59889584), (512, 41174089), (632, 33356224), (704, 29944792), (869, 24259072), (1264, 16678112), (1408, 14972396), (1738, 12129536), (2528, 8339056), (2816, 7486198), (3476, 6064768), (5056, 4169528), (5632, 3743099), (6952, 3032384), (10112, 2084764), (13904, 1516192), (20224, 1042382), (27808, 758096), (40448, 521191), (47381, 444928), (55616, 379048), (94762, 222464), (111232, 189524)]