20931008

素因数分解:

$2^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2459}}^1$

素因数の和:2497

約数の個数: 56

約数和(自身を含む): 49987200

約数和(自身を除く): 29056192

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 133, 152, 224, 266, 304, 448, 532, 608, 1064, 1216, 2128, 2459, 4256, 4918, 8512, 9836, 17213, 19672, 34426, 39344, 46721, 68852, 78688, 93442, 137704, 157376, 186884, 275408, 327047, 373768, 550816, 654094, 747536, 1101632, 1308188, 1495072, 2616376, 2990144, 5232752, 10465504, 20931008]

約数ペア:

[(1, 20931008), (2, 10465504), (4, 5232752), (7, 2990144), (8, 2616376), (14, 1495072), (16, 1308188), (19, 1101632), (28, 747536), (32, 654094), (38, 550816), (56, 373768), (64, 327047), (76, 275408), (112, 186884), (133, 157376), (152, 137704), (224, 93442), (266, 78688), (304, 68852), (448, 46721), (532, 39344), (608, 34426), (1064, 19672), (1216, 17213), (2128, 9836), (2459, 8512), (4256, 4918)]