161007021

素因数分解:

$3^4\times 7^1\times {\mathrm{443}}^1\times {\mathrm{641}}^1$

素因数の和:1103

約数の個数: 40

約数和(自身を含む): 275926464

約数和(自身を除く): 114919443

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 443, 567, 641, 1329, 1923, 3101, 3987, 4487, 5769, 9303, 11961, 13461, 17307, 27909, 35883, 40383, 51921, 83727, 121149, 251181, 283963, 363447, 851889, 1987741, 2555667, 5963223, 7667001, 17889669, 23001003, 53669007, 161007021]

約数ペア:

[(1, 161007021), (3, 53669007), (7, 23001003), (9, 17889669), (21, 7667001), (27, 5963223), (63, 2555667), (81, 1987741), (189, 851889), (443, 363447), (567, 283963), (641, 251181), (1329, 121149), (1923, 83727), (3101, 51921), (3987, 40383), (4487, 35883), (5769, 27909), (9303, 17307), (11961, 13461)]