21507584

素因数分解:

$2^9\times 7^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1$

素因数の和:395

約数の個数: 80

約数和(自身を含む): 52148448

約数和(自身を除く): 30640864

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 256, 272, 353, 448, 476, 512, 544, 706, 896, 952, 1088, 1412, 1792, 1904, 2176, 2471, 2824, 3584, 3808, 4352, 4942, 5648, 6001, 7616, 8704, 9884, 11296, 12002, 15232, 19768, 22592, 24004, 30464, 39536, 42007, 45184, 48008, 60928, 79072, 84014, 90368, 96016, 158144, 168028, 180736, 192032, 316288, 336056, 384064, 632576, 672112, 768128, 1265152, 1344224, 1536256, 2688448, 3072512, 5376896, 10753792, 21507584]

約数ペア:

[(1, 21507584), (2, 10753792), (4, 5376896), (7, 3072512), (8, 2688448), (14, 1536256), (16, 1344224), (17, 1265152), (28, 768128), (32, 672112), (34, 632576), (56, 384064), (64, 336056), (68, 316288), (112, 192032), (119, 180736), (128, 168028), (136, 158144), (224, 96016), (238, 90368), (256, 84014), (272, 79072), (353, 60928), (448, 48008), (476, 45184), (512, 42007), (544, 39536), (706, 30464), (896, 24004), (952, 22592), (1088, 19768), (1412, 15232), (1792, 12002), (1904, 11296), (2176, 9884), (2471, 8704), (2824, 7616), (3584, 6001), (3808, 5648), (4352, 4942)]