21538242

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:101

約数の個数: 96

約数和(自身を含む): 54812160

約数和(自身を除く): 33273918

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 29, 31, 33, 58, 62, 66, 87, 93, 99, 121, 174, 186, 198, 242, 261, 279, 319, 341, 363, 522, 558, 638, 682, 726, 899, 957, 1023, 1089, 1331, 1798, 1914, 2046, 2178, 2662, 2697, 2871, 3069, 3509, 3751, 3993, 5394, 5742, 6138, 7018, 7502, 7986, 8091, 9889, 10527, 11253, 11979, 16182, 19778, 21054, 22506, 23958, 29667, 31581, 33759, 38599, 41261, 59334, 63162, 67518, 77198, 82522, 89001, 108779, 115797, 123783, 178002, 217558, 231594, 247566, 326337, 347391, 371349, 652674, 694782, 742698, 979011, 1196569, 1958022, 2393138, 3589707, 7179414, 10769121, 21538242]

約数ペア:

[(1, 21538242), (2, 10769121), (3, 7179414), (6, 3589707), (9, 2393138), (11, 1958022), (18, 1196569), (22, 979011), (29, 742698), (31, 694782), (33, 652674), (58, 371349), (62, 347391), (66, 326337), (87, 247566), (93, 231594), (99, 217558), (121, 178002), (174, 123783), (186, 115797), (198, 108779), (242, 89001), (261, 82522), (279, 77198), (319, 67518), (341, 63162), (363, 59334), (522, 41261), (558, 38599), (638, 33759), (682, 31581), (726, 29667), (899, 23958), (957, 22506), (1023, 21054), (1089, 19778), (1331, 16182), (1798, 11979), (1914, 11253), (2046, 10527), (2178, 9889), (2662, 8091), (2697, 7986), (2871, 7502), (3069, 7018), (3509, 6138), (3751, 5742), (3993, 5394)]