20954175

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{2309}}^1$

素因数の和:2344

約数の個数: 36

約数和(自身を含む): 38096520

約数和(自身を除く): 17142345

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 165, 275, 363, 605, 825, 1815, 2309, 3025, 6927, 9075, 11545, 25399, 34635, 57725, 76197, 126995, 173175, 279389, 380985, 634975, 838167, 1396945, 1904925, 4190835, 6984725, 20954175]

約数ペア:

[(1, 20954175), (3, 6984725), (5, 4190835), (11, 1904925), (15, 1396945), (25, 838167), (33, 634975), (55, 380985), (75, 279389), (121, 173175), (165, 126995), (275, 76197), (363, 57725), (605, 34635), (825, 25399), (1815, 11545), (2309, 9075), (3025, 6927)]