21750465

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2161}}^1$

素因数の和:2241

約数の個数: 32

約数和(自身を含む): 38604672

約数和(自身を除く): 16854207

約数列:

[1, 3, 5, 11, 15, 33, 55, 61, 165, 183, 305, 671, 915, 2013, 2161, 3355, 6483, 10065, 10805, 23771, 32415, 71313, 118855, 131821, 356565, 395463, 659105, 1450031, 1977315, 4350093, 7250155, 21750465]

約数ペア:

[(1, 21750465), (3, 7250155), (5, 4350093), (11, 1977315), (15, 1450031), (33, 659105), (55, 395463), (61, 356565), (165, 131821), (183, 118855), (305, 71313), (671, 32415), (915, 23771), (2013, 10805), (2161, 10065), (3355, 6483)]