21056556591

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{2711}}^1$

素因数の和:2893

約数の個数: 96

約数和(自身を含む): 37149106176

約数和(自身を除く): 16092549585

約数列:

[1, 3, 7, 9, 21, 31, 41, 63, 93, 97, 123, 217, 279, 287, 291, 369, 651, 679, 861, 873, 1271, 1953, 2037, 2583, 2711, 3007, 3813, 3977, 6111, 8133, 8897, 9021, 11439, 11931, 18977, 21049, 24399, 26691, 27063, 27839, 35793, 56931, 63147, 80073, 83517, 84041, 111151, 123287, 170793, 189441, 250551, 252123, 262967, 333453, 369861, 588287, 756369, 778057, 788901, 863009, 1000359, 1109583, 1764861, 1840769, 2334171, 2366703, 2589027, 3445681, 5294583, 5522307, 7002513, 7767081, 8151977, 10337043, 10781647, 16566921, 24119767, 24455931, 31011129, 32344941, 57063839, 72359301, 73367793, 75471529, 97034823, 171191517, 217077903, 226414587, 334231057, 513574551, 679243761, 1002693171, 2339617399, 3008079513, 7018852197, 21056556591]

約数ペア:

[(1, 21056556591), (3, 7018852197), (7, 3008079513), (9, 2339617399), (21, 1002693171), (31, 679243761), (41, 513574551), (63, 334231057), (93, 226414587), (97, 217077903), (123, 171191517), (217, 97034823), (279, 75471529), (287, 73367793), (291, 72359301), (369, 57063839), (651, 32344941), (679, 31011129), (861, 24455931), (873, 24119767), (1271, 16566921), (1953, 10781647), (2037, 10337043), (2583, 8151977), (2711, 7767081), (3007, 7002513), (3813, 5522307), (3977, 5294583), (6111, 3445681), (8133, 2589027), (8897, 2366703), (9021, 2334171), (11439, 1840769), (11931, 1764861), (18977, 1109583), (21049, 1000359), (24399, 863009), (26691, 788901), (27063, 778057), (27839, 756369), (35793, 588287), (56931, 369861), (63147, 333453), (80073, 262967), (83517, 252123), (84041, 250551), (111151, 189441), (123287, 170793)]