21078330

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1103}}^1$

素因数の和:1140

約数の個数: 96

約数和(自身を含む): 63431424

約数和(自身を除く): 42353094

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 49, 65, 70, 78, 91, 98, 105, 130, 147, 182, 195, 210, 245, 273, 294, 390, 455, 490, 546, 637, 735, 910, 1103, 1274, 1365, 1470, 1911, 2206, 2730, 3185, 3309, 3822, 5515, 6370, 6618, 7721, 9555, 11030, 14339, 15442, 16545, 19110, 23163, 28678, 33090, 38605, 43017, 46326, 54047, 71695, 77210, 86034, 100373, 108094, 115815, 143390, 162141, 200746, 215085, 231630, 270235, 301119, 324282, 430170, 501865, 540470, 602238, 702611, 810705, 1003730, 1405222, 1505595, 1621410, 2107833, 3011190, 3513055, 4215666, 7026110, 10539165, 21078330]

約数ペア:

[(1, 21078330), (2, 10539165), (3, 7026110), (5, 4215666), (6, 3513055), (7, 3011190), (10, 2107833), (13, 1621410), (14, 1505595), (15, 1405222), (21, 1003730), (26, 810705), (30, 702611), (35, 602238), (39, 540470), (42, 501865), (49, 430170), (65, 324282), (70, 301119), (78, 270235), (91, 231630), (98, 215085), (105, 200746), (130, 162141), (147, 143390), (182, 115815), (195, 108094), (210, 100373), (245, 86034), (273, 77210), (294, 71695), (390, 54047), (455, 46326), (490, 43017), (546, 38605), (637, 33090), (735, 28678), (910, 23163), (1103, 19110), (1274, 16545), (1365, 15442), (1470, 14339), (1911, 11030), (2206, 9555), (2730, 7721), (3185, 6618), (3309, 6370), (3822, 5515)]