21698325

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{797}}^1$

素因数の和:835

約数の個数: 54

約数和(自身を含む): 42772002

約数和(自身を除く): 21073677

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 121, 165, 225, 275, 363, 495, 605, 797, 825, 1089, 1815, 2391, 2475, 3025, 3985, 5445, 7173, 8767, 9075, 11955, 19925, 26301, 27225, 35865, 43835, 59775, 78903, 96437, 131505, 179325, 219175, 289311, 394515, 482185, 657525, 867933, 1446555, 1972575, 2410925, 4339665, 7232775, 21698325]

約数ペア:

[(1, 21698325), (3, 7232775), (5, 4339665), (9, 2410925), (11, 1972575), (15, 1446555), (25, 867933), (33, 657525), (45, 482185), (55, 394515), (75, 289311), (99, 219175), (121, 179325), (165, 131505), (225, 96437), (275, 78903), (363, 59775), (495, 43835), (605, 35865), (797, 27225), (825, 26301), (1089, 19925), (1815, 11955), (2391, 9075), (2475, 8767), (3025, 7173), (3985, 5445)]