21929895

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1973}}^1$

素因数の和:2016

約数の個数: 48

約数和(自身を含む): 43112160

約数和(自身を除く): 21182265

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 741, 855, 1235, 1973, 2223, 3705, 5919, 9865, 11115, 17757, 25649, 29595, 37487, 76947, 88785, 112461, 128245, 187435, 230841, 337383, 384735, 487331, 562305, 1154205, 1461993, 1686915, 2436655, 4385979, 7309965, 21929895]

約数ペア:

[(1, 21929895), (3, 7309965), (5, 4385979), (9, 2436655), (13, 1686915), (15, 1461993), (19, 1154205), (39, 562305), (45, 487331), (57, 384735), (65, 337383), (95, 230841), (117, 187435), (171, 128245), (195, 112461), (247, 88785), (285, 76947), (585, 37487), (741, 29595), (855, 25649), (1235, 17757), (1973, 11115), (2223, 9865), (3705, 5919)]