21111424

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 44945280

約数和(自身を除く): 23833856

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 71, 92, 101, 128, 142, 184, 202, 284, 368, 404, 568, 736, 808, 1136, 1472, 1616, 1633, 2272, 2323, 2944, 3232, 3266, 4544, 4646, 6464, 6532, 7171, 9088, 9292, 12928, 13064, 14342, 18584, 26128, 28684, 37168, 52256, 57368, 74336, 104512, 114736, 148672, 164933, 209024, 229472, 297344, 329866, 458944, 659732, 917888, 1319464, 2638928, 5277856, 10555712, 21111424]

約数ペア:

[(1, 21111424), (2, 10555712), (4, 5277856), (8, 2638928), (16, 1319464), (23, 917888), (32, 659732), (46, 458944), (64, 329866), (71, 297344), (92, 229472), (101, 209024), (128, 164933), (142, 148672), (184, 114736), (202, 104512), (284, 74336), (368, 57368), (404, 52256), (568, 37168), (736, 28684), (808, 26128), (1136, 18584), (1472, 14342), (1616, 13064), (1633, 12928), (2272, 9292), (2323, 9088), (2944, 7171), (3232, 6532), (3266, 6464), (4544, 4646)]