21744268

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 50577408

約数和(自身を除く): 28833140

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 41, 47, 52, 62, 82, 91, 94, 124, 164, 182, 188, 217, 287, 329, 364, 403, 434, 533, 574, 611, 658, 806, 868, 1066, 1148, 1222, 1271, 1316, 1457, 1612, 1927, 2132, 2444, 2542, 2821, 2914, 3731, 3854, 4277, 5084, 5642, 5828, 7462, 7708, 8554, 8897, 10199, 11284, 13489, 14924, 16523, 17108, 17794, 18941, 20398, 25051, 26978, 33046, 35588, 37882, 40796, 50102, 53956, 59737, 66092, 75764, 100204, 115661, 119474, 132587, 175357, 231322, 238948, 265174, 350714, 418159, 462644, 530348, 701428, 776581, 836318, 1553162, 1672636, 3106324, 5436067, 10872134, 21744268]

約数ペア:

[(1, 21744268), (2, 10872134), (4, 5436067), (7, 3106324), (13, 1672636), (14, 1553162), (26, 836318), (28, 776581), (31, 701428), (41, 530348), (47, 462644), (52, 418159), (62, 350714), (82, 265174), (91, 238948), (94, 231322), (124, 175357), (164, 132587), (182, 119474), (188, 115661), (217, 100204), (287, 75764), (329, 66092), (364, 59737), (403, 53956), (434, 50102), (533, 40796), (574, 37882), (611, 35588), (658, 33046), (806, 26978), (868, 25051), (1066, 20398), (1148, 18941), (1222, 17794), (1271, 17108), (1316, 16523), (1457, 14924), (1612, 13489), (1927, 11284), (2132, 10199), (2444, 8897), (2542, 8554), (2821, 7708), (2914, 7462), (3731, 5828), (3854, 5642), (4277, 5084)]