21259498

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{487}}^1$

素因数の和:598

約数の個数: 32

約数和(自身を含む): 36400896

約数和(自身を除く): 15141398

約数列:

[1, 2, 13, 23, 26, 46, 73, 146, 299, 487, 598, 949, 974, 1679, 1898, 3358, 6331, 11201, 12662, 21827, 22402, 35551, 43654, 71102, 145613, 291226, 462163, 817673, 924326, 1635346, 10629749, 21259498]

約数ペア:

[(1, 21259498), (2, 10629749), (13, 1635346), (23, 924326), (26, 817673), (46, 462163), (73, 291226), (146, 145613), (299, 71102), (487, 43654), (598, 35551), (949, 22402), (974, 21827), (1679, 12662), (1898, 11201), (3358, 6331)]