21376112

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:717

約数の個数: 40

約数和(自身を含む): 43425792

約数和(自身を除く): 22049680

約数列:

[1, 2, 4, 8, 16, 31, 62, 71, 124, 142, 248, 284, 496, 568, 607, 1136, 1214, 2201, 2428, 4402, 4856, 8804, 9712, 17608, 18817, 35216, 37634, 43097, 75268, 86194, 150536, 172388, 301072, 344776, 689552, 1336007, 2672014, 5344028, 10688056, 21376112]

約数ペア:

[(1, 21376112), (2, 10688056), (4, 5344028), (8, 2672014), (16, 1336007), (31, 689552), (62, 344776), (71, 301072), (124, 172388), (142, 150536), (248, 86194), (284, 75268), (496, 43097), (568, 37634), (607, 35216), (1136, 18817), (1214, 17608), (2201, 9712), (2428, 8804), (4402, 4856)]