21802864

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:409

約数の個数: 40

約数和(自身を含む): 43590960

約数和(自身を除く): 21788096

約数列:

[1, 2, 4, 8, 16, 61, 89, 122, 178, 244, 251, 356, 488, 502, 712, 976, 1004, 1424, 2008, 4016, 5429, 10858, 15311, 21716, 22339, 30622, 43432, 44678, 61244, 86864, 89356, 122488, 178712, 244976, 357424, 1362679, 2725358, 5450716, 10901432, 21802864]

約数ペア:

[(1, 21802864), (2, 10901432), (4, 5450716), (8, 2725358), (16, 1362679), (61, 357424), (89, 244976), (122, 178712), (178, 122488), (244, 89356), (251, 86864), (356, 61244), (488, 44678), (502, 43432), (712, 30622), (976, 22339), (1004, 21716), (1424, 15311), (2008, 10858), (4016, 5429)]