21484345

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 29393280

約数和(自身を除く): 7908935

約数列:

[1, 5, 17, 19, 53, 85, 95, 251, 265, 323, 901, 1007, 1255, 1615, 4267, 4505, 4769, 5035, 13303, 17119, 21335, 23845, 66515, 81073, 85595, 226151, 252757, 405365, 1130755, 1263785, 4296869, 21484345]

約数ペア:

[(1, 21484345), (5, 4296869), (17, 1263785), (19, 1130755), (53, 405365), (85, 252757), (95, 226151), (251, 85595), (265, 81073), (323, 66515), (901, 23845), (1007, 21335), (1255, 17119), (1615, 13303), (4267, 5035), (4505, 4769)]