21499682769

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{104513}}^1$

素因数の和:104942

約数の個数: 32

約数和(自身を含む): 33611702400

約数和(自身を除く): 12112019631

約数列:

[1, 3, 9, 19, 27, 57, 171, 401, 513, 1203, 3609, 7619, 10827, 22857, 68571, 104513, 205713, 313539, 940617, 1985747, 2821851, 5957241, 17871723, 41909713, 53615169, 125729139, 377187417, 796284547, 1131562251, 2388853641, 7166560923, 21499682769]

約数ペア:

[(1, 21499682769), (3, 7166560923), (9, 2388853641), (19, 1131562251), (27, 796284547), (57, 377187417), (171, 125729139), (401, 53615169), (513, 41909713), (1203, 17871723), (3609, 5957241), (7619, 2821851), (10827, 1985747), (22857, 940617), (68571, 313539), (104513, 205713)]