21394835

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{911}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 32569344

約数和(自身を除く): 11174509

約数列:

[1, 5, 7, 11, 35, 55, 61, 77, 305, 385, 427, 671, 911, 2135, 3355, 4555, 4697, 6377, 10021, 23485, 31885, 50105, 55571, 70147, 277855, 350735, 388997, 611281, 1944985, 3056405, 4278967, 21394835]

約数ペア:

[(1, 21394835), (5, 4278967), (7, 3056405), (11, 1944985), (35, 611281), (55, 388997), (61, 350735), (77, 277855), (305, 70147), (385, 55571), (427, 50105), (671, 31885), (911, 23485), (2135, 10021), (3355, 6377), (4555, 4697)]