238439781

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{977}}^1$

素因数の和:1143

約数の個数: 40

約数和(自身を含む): 374894784

約数和(自身を除く): 136455003

約数列:

[1, 3, 9, 23, 27, 69, 81, 131, 207, 393, 621, 977, 1179, 1863, 2931, 3013, 3537, 8793, 9039, 10611, 22471, 26379, 27117, 67413, 79137, 81351, 127987, 202239, 244053, 383961, 606717, 1151883, 1820151, 2943701, 3455649, 8831103, 10366947, 26493309, 79479927, 238439781]

約数ペア:

[(1, 238439781), (3, 79479927), (9, 26493309), (23, 10366947), (27, 8831103), (69, 3455649), (81, 2943701), (131, 1820151), (207, 1151883), (393, 606717), (621, 383961), (977, 244053), (1179, 202239), (1863, 127987), (2931, 81351), (3013, 79137), (3537, 67413), (8793, 27117), (9039, 26379), (10611, 22471)]