21515691529725

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{521}}^1\times {\mathrm{17762113}}^1$

素因数の和:17762678

約数の個数: 48

約数和(自身を含む): 36790595679744

約数和(自身を除く): 15274904150019

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 521, 775, 1563, 2325, 2605, 7815, 13025, 16151, 39075, 48453, 80755, 242265, 403775, 1211325, 17762113, 53286339, 88810565, 266431695, 444052825, 550625503, 1332158475, 1651876509, 2753127515, 8259382545, 9254060873, 13765637575, 27762182619, 41296912725, 46270304365, 138810913095, 231351521825, 286875887063, 694054565475, 860627661189, 1434379435315, 4303138305945, 7171897176575, 21515691529725]

約数ペア:

[(1, 21515691529725), (3, 7171897176575), (5, 4303138305945), (15, 1434379435315), (25, 860627661189), (31, 694054565475), (75, 286875887063), (93, 231351521825), (155, 138810913095), (465, 46270304365), (521, 41296912725), (775, 27762182619), (1563, 13765637575), (2325, 9254060873), (2605, 8259382545), (7815, 2753127515), (13025, 1651876509), (16151, 1332158475), (39075, 550625503), (48453, 444052825), (80755, 266431695), (242265, 88810565), (403775, 53286339), (1211325, 17762113)]