21115691535

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{467213}}^1$

素因数の和:467375

約数の個数: 32

約数和(自身を含む): 35523214848

約数和(自身を除く): 14407523313

約数列:

[1, 3, 5, 15, 23, 69, 115, 131, 345, 393, 655, 1965, 3013, 9039, 15065, 45195, 467213, 1401639, 2336065, 7008195, 10745899, 32237697, 53729495, 61204903, 161188485, 183614709, 306024515, 918073545, 1407712769, 4223138307, 7038563845, 21115691535]

約数ペア:

[(1, 21115691535), (3, 7038563845), (5, 4223138307), (15, 1407712769), (23, 918073545), (69, 306024515), (115, 183614709), (131, 161188485), (345, 61204903), (393, 53729495), (655, 32237697), (1965, 10745899), (3013, 7008195), (9039, 2336065), (15065, 1401639), (45195, 467213)]