21609660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 63221760

約数和(自身を除く): 41612100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 79, 94, 97, 141, 158, 188, 194, 235, 237, 282, 291, 316, 388, 395, 470, 474, 485, 564, 582, 705, 790, 940, 948, 970, 1164, 1185, 1410, 1455, 1580, 1940, 2370, 2820, 2910, 3713, 4559, 4740, 5820, 7426, 7663, 9118, 11139, 13677, 14852, 15326, 18236, 18565, 22278, 22795, 22989, 27354, 30652, 37130, 38315, 44556, 45590, 45978, 54708, 55695, 68385, 74260, 76630, 91180, 91956, 111390, 114945, 136770, 153260, 222780, 229890, 273540, 360161, 459780, 720322, 1080483, 1440644, 1800805, 2160966, 3601610, 4321932, 5402415, 7203220, 10804830, 21609660]

約数ペア:

[(1, 21609660), (2, 10804830), (3, 7203220), (4, 5402415), (5, 4321932), (6, 3601610), (10, 2160966), (12, 1800805), (15, 1440644), (20, 1080483), (30, 720322), (47, 459780), (60, 360161), (79, 273540), (94, 229890), (97, 222780), (141, 153260), (158, 136770), (188, 114945), (194, 111390), (235, 91956), (237, 91180), (282, 76630), (291, 74260), (316, 68385), (388, 55695), (395, 54708), (470, 45978), (474, 45590), (485, 44556), (564, 38315), (582, 37130), (705, 30652), (790, 27354), (940, 22989), (948, 22795), (970, 22278), (1164, 18565), (1185, 18236), (1410, 15326), (1455, 14852), (1580, 13677), (1940, 11139), (2370, 9118), (2820, 7663), (2910, 7426), (3713, 5820), (4559, 4740)]