21000455457

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1\times {\mathrm{9091}}^1$

素因数の和:9605

約数の個数: 32

約数和(自身を含む): 29466808320

約数和(自身を除く): 8466352863

約数列:

[1, 3, 31, 59, 93, 177, 421, 1263, 1829, 5487, 9091, 13051, 24839, 27273, 39153, 74517, 281821, 536369, 770009, 845463, 1609107, 2310027, 3827311, 11481933, 16627439, 49882317, 118646641, 225811349, 355939923, 677434047, 7000151819, 21000455457]

約数ペア:

[(1, 21000455457), (3, 7000151819), (31, 677434047), (59, 355939923), (93, 225811349), (177, 118646641), (421, 49882317), (1263, 16627439), (1829, 11481933), (5487, 3827311), (9091, 2310027), (13051, 1609107), (24839, 845463), (27273, 770009), (39153, 536369), (74517, 281821)]