210021975

素因数分解:

$3^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{9623}}^1$

素因数の和:9736

約数の個数: 36

約数和(自身を含む): 380090256

約数和(自身を除く): 170068281

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 97, 225, 291, 485, 873, 1455, 2425, 4365, 7275, 9623, 21825, 28869, 48115, 86607, 144345, 240575, 433035, 721725, 933431, 2165175, 2800293, 4667155, 8400879, 14001465, 23335775, 42004395, 70007325, 210021975]

約数ペア:

[(1, 210021975), (3, 70007325), (5, 42004395), (9, 23335775), (15, 14001465), (25, 8400879), (45, 4667155), (75, 2800293), (97, 2165175), (225, 933431), (291, 721725), (485, 433035), (873, 240575), (1455, 144345), (2425, 86607), (4365, 48115), (7275, 28869), (9623, 21825)]