21461517

素因数分解:

$3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:101

約数の個数: 96

約数和(自身を含む): 42491904

約数和(自身を除く): 21030387

約数列:

[1, 3, 7, 9, 11, 21, 27, 31, 33, 37, 63, 77, 81, 93, 99, 111, 189, 217, 231, 243, 259, 279, 297, 333, 341, 407, 567, 651, 693, 777, 837, 891, 999, 1023, 1147, 1221, 1701, 1953, 2079, 2331, 2387, 2511, 2673, 2849, 2997, 3069, 3441, 3663, 5859, 6237, 6993, 7161, 7533, 8029, 8547, 8991, 9207, 10323, 10989, 12617, 17577, 18711, 20979, 21483, 24087, 25641, 27621, 30969, 32967, 37851, 52731, 62937, 64449, 72261, 76923, 82863, 88319, 92907, 98901, 113553, 193347, 216783, 230769, 264957, 278721, 340659, 580041, 650349, 692307, 794871, 1021977, 1951047, 2384613, 3065931, 7153839, 21461517]

約数ペア:

[(1, 21461517), (3, 7153839), (7, 3065931), (9, 2384613), (11, 1951047), (21, 1021977), (27, 794871), (31, 692307), (33, 650349), (37, 580041), (63, 340659), (77, 278721), (81, 264957), (93, 230769), (99, 216783), (111, 193347), (189, 113553), (217, 98901), (231, 92907), (243, 88319), (259, 82863), (279, 76923), (297, 72261), (333, 64449), (341, 62937), (407, 52731), (567, 37851), (651, 32967), (693, 30969), (777, 27621), (837, 25641), (891, 24087), (999, 21483), (1023, 20979), (1147, 18711), (1221, 17577), (1701, 12617), (1953, 10989), (2079, 10323), (2331, 9207), (2387, 8991), (2511, 8547), (2673, 8029), (2849, 7533), (2997, 7161), (3069, 6993), (3441, 6237), (3663, 5859)]