18780482

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:546

約数の個数: 32

約数和(自身を含む): 33623040

約数和(自身を除く): 14842558

約数列:

[1, 2, 7, 14, 31, 62, 109, 217, 218, 397, 434, 763, 794, 1526, 2779, 3379, 5558, 6758, 12307, 23653, 24614, 43273, 47306, 86149, 86546, 172298, 302911, 605822, 1341463, 2682926, 9390241, 18780482]

約数ペア:

[(1, 18780482), (2, 9390241), (7, 2682926), (14, 1341463), (31, 605822), (62, 302911), (109, 172298), (217, 86546), (218, 86149), (397, 47306), (434, 43273), (763, 24614), (794, 23653), (1526, 12307), (2779, 6758), (3379, 5558)]