21436415

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4283}}^1$

素因数の和:4319

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 13109761

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 4283, 5005, 21415, 29981, 47113, 55679, 149905, 235565, 278395, 329791, 389753, 612469, 1648955, 1948765, 3062345, 4287283, 21436415]

約数ペア:

[(1, 21436415), (5, 4287283), (7, 3062345), (11, 1948765), (13, 1648955), (35, 612469), (55, 389753), (65, 329791), (77, 278395), (91, 235565), (143, 149905), (385, 55679), (455, 47113), (715, 29981), (1001, 21415), (4283, 5005)]