21448203

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{823}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 35122176

約数和(自身を除く): 13673973

約数列:

[1, 3, 7, 17, 21, 51, 73, 119, 219, 357, 511, 823, 1241, 1533, 2469, 3723, 5761, 8687, 13991, 17283, 26061, 41973, 60079, 97937, 180237, 293811, 420553, 1021343, 1261659, 3064029, 7149401, 21448203]

約数ペア:

[(1, 21448203), (3, 7149401), (7, 3064029), (17, 1261659), (21, 1021343), (51, 420553), (73, 293811), (119, 180237), (219, 97937), (357, 60079), (511, 41973), (823, 26061), (1241, 17283), (1533, 13991), (2469, 8687), (3723, 5761)]