21974545

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 7574255

約数列:

[1, 5, 19, 23, 89, 95, 113, 115, 437, 445, 565, 1691, 2047, 2147, 2185, 2599, 8455, 10057, 10235, 10735, 12995, 38893, 49381, 50285, 191083, 194465, 231311, 246905, 955415, 1156555, 4394909, 21974545]

約数ペア:

[(1, 21974545), (5, 4394909), (19, 1156555), (23, 955415), (89, 246905), (95, 231311), (113, 194465), (115, 191083), (437, 50285), (445, 49381), (565, 38893), (1691, 12995), (2047, 10735), (2147, 10235), (2185, 10057), (2599, 8455)]