21157562

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 35195904

約数和(自身を除く): 14038342

約数列:

[1, 2, 23, 31, 37, 46, 62, 74, 401, 713, 802, 851, 1147, 1426, 1702, 2294, 9223, 12431, 14837, 18446, 24862, 26381, 29674, 52762, 285913, 341251, 459947, 571826, 682502, 919894, 10578781, 21157562]

約数ペア:

[(1, 21157562), (2, 10578781), (23, 919894), (31, 682502), (37, 571826), (46, 459947), (62, 341251), (74, 285913), (401, 52762), (713, 29674), (802, 26381), (851, 24862), (1147, 18446), (1426, 14837), (1702, 12431), (2294, 9223)]