213790451

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1487}}^1$

素因数の和:1583

約数の個数: 32

約数和(自身を含む): 274268160

約数和(自身を除く): 60477709

約数列:

[1, 7, 19, 23, 47, 133, 161, 329, 437, 893, 1081, 1487, 3059, 6251, 7567, 10409, 20539, 28253, 34201, 69889, 143773, 197771, 239407, 489223, 649819, 1327891, 1607447, 4548733, 9295237, 11252129, 30541493, 213790451]

約数ペア:

[(1, 213790451), (7, 30541493), (19, 11252129), (23, 9295237), (47, 4548733), (133, 1607447), (161, 1327891), (329, 649819), (437, 489223), (893, 239407), (1081, 197771), (1487, 143773), (3059, 69889), (6251, 34201), (7567, 28253), (10409, 20539)]