397651209

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 609638400

約数和(自身を除く): 211987191

約数列:

[1, 3, 19, 23, 53, 57, 59, 69, 97, 159, 177, 291, 437, 1007, 1121, 1219, 1311, 1357, 1843, 2231, 3021, 3127, 3363, 3657, 4071, 5141, 5529, 5723, 6693, 9381, 15423, 17169, 23161, 25783, 42389, 59413, 69483, 71921, 77349, 97679, 108737, 118243, 127167, 131629, 178239, 215763, 293037, 303319, 326211, 354729, 394887, 909957, 1366499, 2246617, 2500951, 4099497, 5763061, 6739851, 6976337, 7502853, 17289183, 20929011, 132550403, 397651209]

約数ペア:

[(1, 397651209), (3, 132550403), (19, 20929011), (23, 17289183), (53, 7502853), (57, 6976337), (59, 6739851), (69, 5763061), (97, 4099497), (159, 2500951), (177, 2246617), (291, 1366499), (437, 909957), (1007, 394887), (1121, 354729), (1219, 326211), (1311, 303319), (1357, 293037), (1843, 215763), (2231, 178239), (3021, 131629), (3127, 127167), (3363, 118243), (3657, 108737), (4071, 97679), (5141, 77349), (5529, 71921), (5723, 69483), (6693, 59413), (9381, 42389), (15423, 25783), (17169, 23161)]