21754491

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:283

約数の個数: 32

約数和(自身を含む): 32783616

約数和(自身を除く): 11029125

約数列:

[1, 3, 11, 33, 61, 101, 107, 183, 303, 321, 671, 1111, 1177, 2013, 3333, 3531, 6161, 6527, 10807, 18483, 19581, 32421, 67771, 71797, 118877, 203313, 215391, 356631, 659227, 1977681, 7251497, 21754491]

約数ペア:

[(1, 21754491), (3, 7251497), (11, 1977681), (33, 659227), (61, 356631), (101, 215391), (107, 203313), (183, 118877), (303, 71797), (321, 67771), (671, 32421), (1111, 19581), (1177, 18483), (2013, 10807), (3333, 6527), (3531, 6161)]