31177791

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:253

約数の個数: 40

約数和(自身を含む): 48775584

約数和(自身を除く): 17597793

約数列:

[1, 3, 9, 27, 37, 81, 101, 103, 111, 303, 309, 333, 909, 927, 999, 2727, 2781, 2997, 3737, 3811, 8181, 8343, 10403, 11211, 11433, 31209, 33633, 34299, 93627, 100899, 102897, 280881, 302697, 308691, 384911, 842643, 1154733, 3464199, 10392597, 31177791]

約数ペア:

[(1, 31177791), (3, 10392597), (9, 3464199), (27, 1154733), (37, 842643), (81, 384911), (101, 308691), (103, 302697), (111, 280881), (303, 102897), (309, 100899), (333, 93627), (909, 34299), (927, 33633), (999, 31209), (2727, 11433), (2781, 11211), (2997, 10403), (3737, 8343), (3811, 8181)]