21006136

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 40294800

約数和(自身を除く): 19288664

約数列:

[1, 2, 4, 8, 89, 163, 178, 181, 326, 356, 362, 652, 712, 724, 1304, 1448, 14507, 16109, 29014, 29503, 32218, 58028, 59006, 64436, 116056, 118012, 128872, 236024, 2625767, 5251534, 10503068, 21006136]

約数ペア:

[(1, 21006136), (2, 10503068), (4, 5251534), (8, 2625767), (89, 236024), (163, 128872), (178, 118012), (181, 116056), (326, 64436), (356, 59006), (362, 58028), (652, 32218), (712, 29503), (724, 29014), (1304, 16109), (1448, 14507)]