21153552

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{401}}^1$

素因数の和:576

約数の個数: 80

約数和(自身を含む): 63007872

約数和(自身を除く): 41854320

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 157, 168, 314, 336, 401, 471, 628, 802, 942, 1099, 1203, 1256, 1604, 1884, 2198, 2406, 2512, 2807, 3208, 3297, 3768, 4396, 4812, 5614, 6416, 6594, 7536, 8421, 8792, 9624, 11228, 13188, 16842, 17584, 19248, 22456, 26376, 33684, 44912, 52752, 62957, 67368, 125914, 134736, 188871, 251828, 377742, 440699, 503656, 755484, 881398, 1007312, 1322097, 1510968, 1762796, 2644194, 3021936, 3525592, 5288388, 7051184, 10576776, 21153552]

約数ペア:

[(1, 21153552), (2, 10576776), (3, 7051184), (4, 5288388), (6, 3525592), (7, 3021936), (8, 2644194), (12, 1762796), (14, 1510968), (16, 1322097), (21, 1007312), (24, 881398), (28, 755484), (42, 503656), (48, 440699), (56, 377742), (84, 251828), (112, 188871), (157, 134736), (168, 125914), (314, 67368), (336, 62957), (401, 52752), (471, 44912), (628, 33684), (802, 26376), (942, 22456), (1099, 19248), (1203, 17584), (1256, 16842), (1604, 13188), (1884, 11228), (2198, 9624), (2406, 8792), (2512, 8421), (2807, 7536), (3208, 6594), (3297, 6416), (3768, 5614), (4396, 4812)]