21015717303

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{1667}}^1$

素因数の和:1996

約数の個数: 64

約数和(自身を含む): 33614069760

約数和(自身を除く): 12598352457

約数列:

[1, 3, 7, 21, 29, 87, 127, 163, 203, 381, 489, 609, 889, 1141, 1667, 2667, 3423, 3683, 4727, 5001, 11049, 11669, 14181, 20701, 25781, 33089, 35007, 48343, 62103, 77343, 99267, 144907, 145029, 211709, 271721, 338401, 434721, 600329, 635127, 815163, 1015203, 1481963, 1800987, 1902047, 4202303, 4445889, 5706141, 6139561, 7879909, 12606909, 18418683, 23639727, 34508567, 42976927, 55159363, 103525701, 128930781, 165478089, 241559969, 724679907, 1000748443, 3002245329, 7005239101, 21015717303]

約数ペア:

[(1, 21015717303), (3, 7005239101), (7, 3002245329), (21, 1000748443), (29, 724679907), (87, 241559969), (127, 165478089), (163, 128930781), (203, 103525701), (381, 55159363), (489, 42976927), (609, 34508567), (889, 23639727), (1141, 18418683), (1667, 12606909), (2667, 7879909), (3423, 6139561), (3683, 5706141), (4727, 4445889), (5001, 4202303), (11049, 1902047), (11669, 1800987), (14181, 1481963), (20701, 1015203), (25781, 815163), (33089, 635127), (35007, 600329), (48343, 434721), (62103, 338401), (77343, 271721), (99267, 211709), (144907, 145029)]