21423488

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:439

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 25578112

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 128, 152, 184, 304, 368, 383, 437, 608, 736, 766, 874, 1216, 1472, 1532, 1748, 2432, 2944, 3064, 3496, 6128, 6992, 7277, 8809, 12256, 13984, 14554, 17618, 24512, 27968, 29108, 35236, 49024, 55936, 58216, 70472, 116432, 140944, 167371, 232864, 281888, 334742, 465728, 563776, 669484, 931456, 1127552, 1338968, 2677936, 5355872, 10711744, 21423488]

約数ペア:

[(1, 21423488), (2, 10711744), (4, 5355872), (8, 2677936), (16, 1338968), (19, 1127552), (23, 931456), (32, 669484), (38, 563776), (46, 465728), (64, 334742), (76, 281888), (92, 232864), (128, 167371), (152, 140944), (184, 116432), (304, 70472), (368, 58216), (383, 55936), (437, 49024), (608, 35236), (736, 29108), (766, 27968), (874, 24512), (1216, 17618), (1472, 14554), (1532, 13984), (1748, 12256), (2432, 8809), (2944, 7277), (3064, 6992), (3496, 6128)]