21588285

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 35493120

約数和(自身を除く): 13904835

約数列:

[1, 3, 5, 15, 89, 103, 157, 267, 309, 445, 471, 515, 785, 1335, 1545, 2355, 9167, 13973, 16171, 27501, 41919, 45835, 48513, 69865, 80855, 137505, 209595, 242565, 1439219, 4317657, 7196095, 21588285]

約数ペア:

[(1, 21588285), (3, 7196095), (5, 4317657), (15, 1439219), (89, 242565), (103, 209595), (157, 137505), (267, 80855), (309, 69865), (445, 48513), (471, 45835), (515, 41919), (785, 27501), (1335, 16171), (1545, 13973), (2355, 9167)]