20199278589

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{541}}^1\times {\mathrm{12791}}^1$

素因数の和:13481

約数の個数: 32

約数和(自身を含む): 31061022720

約数和(自身を除く): 10861744131

約数列:

[1, 3, 7, 21, 139, 417, 541, 973, 1623, 2919, 3787, 11361, 12791, 38373, 75199, 89537, 225597, 268611, 526393, 1579179, 1777949, 5333847, 6919931, 12445643, 20759793, 37336929, 48439517, 145318551, 961870409, 2885611227, 6733092863, 20199278589]

約数ペア:

[(1, 20199278589), (3, 6733092863), (7, 2885611227), (21, 961870409), (139, 145318551), (417, 48439517), (541, 37336929), (973, 20759793), (1623, 12445643), (2919, 6919931), (3787, 5333847), (11361, 1777949), (12791, 1579179), (38373, 526393), (75199, 268611), (89537, 225597)]