21841785

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{797}}^1$

素因数の和:847

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 24123015

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 45, 63, 87, 105, 135, 145, 189, 203, 261, 315, 435, 609, 783, 797, 945, 1015, 1305, 1827, 2391, 3045, 3915, 3985, 5481, 5579, 7173, 9135, 11955, 16737, 21519, 23113, 27405, 27895, 35865, 50211, 69339, 83685, 107595, 115565, 150633, 161791, 208017, 251055, 346695, 485373, 624051, 753165, 808955, 1040085, 1456119, 2426865, 3120255, 4368357, 7280595, 21841785]

約数ペア:

[(1, 21841785), (3, 7280595), (5, 4368357), (7, 3120255), (9, 2426865), (15, 1456119), (21, 1040085), (27, 808955), (29, 753165), (35, 624051), (45, 485373), (63, 346695), (87, 251055), (105, 208017), (135, 161791), (145, 150633), (189, 115565), (203, 107595), (261, 83685), (315, 69339), (435, 50211), (609, 35865), (783, 27895), (797, 27405), (945, 23113), (1015, 21519), (1305, 16737), (1827, 11955), (2391, 9135), (3045, 7173), (3915, 5579), (3985, 5481)]