21645120

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{3221}}^1$

素因数の和:3248

約数の個数: 112

約数和(自身を含む): 78565248

約数和(自身を除く): 56920128

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3221, 3360, 6442, 6720, 9663, 12884, 16105, 19326, 22547, 25768, 32210, 38652, 45094, 48315, 51536, 64420, 67641, 77304, 90188, 96630, 103072, 112735, 128840, 135282, 154608, 180376, 193260, 206144, 225470, 257680, 270564, 309216, 338205, 360752, 386520, 450940, 515360, 541128, 618432, 676410, 721504, 773040, 901880, 1030720, 1082256, 1352820, 1443008, 1546080, 1803760, 2164512, 2705640, 3092160, 3607520, 4329024, 5411280, 7215040, 10822560, 21645120]

約数ペア:

[(1, 21645120), (2, 10822560), (3, 7215040), (4, 5411280), (5, 4329024), (6, 3607520), (7, 3092160), (8, 2705640), (10, 2164512), (12, 1803760), (14, 1546080), (15, 1443008), (16, 1352820), (20, 1082256), (21, 1030720), (24, 901880), (28, 773040), (30, 721504), (32, 676410), (35, 618432), (40, 541128), (42, 515360), (48, 450940), (56, 386520), (60, 360752), (64, 338205), (70, 309216), (80, 270564), (84, 257680), (96, 225470), (105, 206144), (112, 193260), (120, 180376), (140, 154608), (160, 135282), (168, 128840), (192, 112735), (210, 103072), (224, 96630), (240, 90188), (280, 77304), (320, 67641), (336, 64420), (420, 51536), (448, 48315), (480, 45094), (560, 38652), (672, 32210), (840, 25768), (960, 22547), (1120, 19326), (1344, 16105), (1680, 12884), (2240, 9663), (3221, 6720), (3360, 6442)]