21971144

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{11119}}^1$

素因数の和:11157

約数の個数: 32

約数和(自身を含む): 46704000

約数和(自身を除く): 24732856

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 11119, 22238, 44476, 88952, 144547, 211261, 289094, 422522, 578188, 845044, 1156376, 1690088, 2746393, 5492786, 10985572, 21971144]

約数ペア:

[(1, 21971144), (2, 10985572), (4, 5492786), (8, 2746393), (13, 1690088), (19, 1156376), (26, 845044), (38, 578188), (52, 422522), (76, 289094), (104, 211261), (152, 144547), (247, 88952), (494, 44476), (988, 22238), (1976, 11119)]