21252994784

素因数分解:

$2^5\times 7^1\times {\mathrm{191}}^1\times {\mathrm{383}}^1\times {\mathrm{1297}}^1$

素因数の和:1888

約数の個数: 96

約数和(自身を含む): 48232267776

約数和(自身を除く): 26979272992

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 191, 224, 382, 383, 764, 766, 1297, 1337, 1528, 1532, 2594, 2674, 2681, 3056, 3064, 5188, 5348, 5362, 6112, 6128, 9079, 10376, 10696, 10724, 12256, 18158, 20752, 21392, 21448, 36316, 41504, 42784, 42896, 72632, 73153, 85792, 145264, 146306, 247727, 290528, 292612, 495454, 496751, 512071, 585224, 990908, 993502, 1024142, 1170448, 1734089, 1981816, 1987004, 2048284, 2340896, 3468178, 3477257, 3963632, 3974008, 4096568, 6936356, 6954514, 7927264, 7948016, 8193136, 13872712, 13909028, 15896032, 16386272, 27745424, 27818056, 55490848, 55636112, 94879441, 111272224, 189758882, 379517764, 664156087, 759035528, 1328312174, 1518071056, 2656624348, 3036142112, 5313248696, 10626497392, 21252994784]

約数ペア:

[(1, 21252994784), (2, 10626497392), (4, 5313248696), (7, 3036142112), (8, 2656624348), (14, 1518071056), (16, 1328312174), (28, 759035528), (32, 664156087), (56, 379517764), (112, 189758882), (191, 111272224), (224, 94879441), (382, 55636112), (383, 55490848), (764, 27818056), (766, 27745424), (1297, 16386272), (1337, 15896032), (1528, 13909028), (1532, 13872712), (2594, 8193136), (2674, 7948016), (2681, 7927264), (3056, 6954514), (3064, 6936356), (5188, 4096568), (5348, 3974008), (5362, 3963632), (6112, 3477257), (6128, 3468178), (9079, 2340896), (10376, 2048284), (10696, 1987004), (10724, 1981816), (12256, 1734089), (18158, 1170448), (20752, 1024142), (21392, 993502), (21448, 990908), (36316, 585224), (41504, 512071), (42784, 496751), (42896, 495454), (72632, 292612), (73153, 290528), (85792, 247727), (145264, 146306)]